Century hasslers

Oscillators
Sparkers	p7 • p8 • p9 • p10 • With specific period • With specific spark type
Hasslers	Traffic light • Honey farm hasslers • Honey farm shuttles • R-pentomino • Pi-heptomino • Lumps of muck • Fleet • Century • B-heptomino • Wing • I-heptomino • Two-glider octomino • Long bun • Procrastinator • Blonk-tie • Teardrop • Butterfly • U-turner • Iwona active region • Octomino II • Pre-pulsar shuttles • Pre-pulsar hasslers • Z-hexomino
Related	With specific hassled object Dependent reflector loops Shuttles

A century hassler is any oscillator that hassles one or more copies of the century, which is the fifth most common evolutionary sequence. Hasslers are known for the following periods:

Small century hassler known periods
2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33
34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49
50	51	52	53	54	55	56	57	58	59	60	61	62	63	64	65
66	67	68	69	70	71	72	73	74	75	76	77	78	79	80	81
82	83	84	85	86	87	88	89	90
104	110	118	120	127	128	135	139	146	172	174	180	186	187	192	246
300
Key:	known			unknown

p3

x = 17, y = 15, rule = B3/S23 5bobo$5b2ob2ob2ob2o$8b3obobo$5b2o3bobobo$5bobo2bo2bob2o$6b3o2b3obo$2b 2o3bo5bobo$2bobo3b6ob2o$3b2o5bo3bo$4bo6b2obo$11b2ob2o$3bobo$b3ob3o$o7b o$2o5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 2 ]]

p3 found by MathAndCode on February 20, 2025 (click above to open LifeViewer) Catagolue: here

p5

x = 31, y = 31, rule = B3/S23 25b2o$25bo$22b2obo$21bobob2o$21bobo4b2o$22bob2ob2obo$23b2o5bo$24b2ob3o $23bo3bo$21b2o3bo$20bo$19bob2o$18b2o$18b3o$19bobo$20b2o$15b3o$16bobo$ 17b2o$11b4o$10bo4bo$3b2o6bo3bo$2bo2bo3b3o2bo$2b3o4b2o$5b2o2b2o$4o3b3o$ o2bobo3bo$5bob2o$4b2obo$4bo2bo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 GPS 3 HEIGHT 500 ]]

p5 found by Carson Cheng on October 23, 2022 (click above to open LifeViewer) Catagolue: here

x = 47, y = 19, rule = B3/S23 9bobo9bo$6bo2b2obo3b2o3b3o$6b3o3bo3bo7bo16b2o$10b2ob2obo2b6o16bo$8b2ob obobo3bo11b2o10bo2bo$3b2o2bo3bobo6b3o3b2o2bo2bo8b5o$3bo2bobobo2b2o4b2o 2b5o13bo$5b2o3bo6b2obob2o6b4o9b2o$b4o2b2o2b3o6b2ob7ob3o6bo4bo$o4bobo7b 2o17bo5b2o2b2o$b4o2b2o2b3o6b2ob7ob3o$5b2o3bo6b2obob2o6b4o2b3o$3bo2bobo bo2b2o4b2o2b5o9bobo$3b2o2bo3bobo6b3o3b2o2bo2bo4b2o$8b2obobobo3bo11b2o$ 10b2ob2obo2b6o$6b3o3bo3bo7bo$6bo2b2obo3b2o3b3o$9bobo9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 3 HEIGHT 500 ]]

p5 found by David Raucci and reduced by Aleph (click above to open LifeViewer) Catagolue: here

x = 17, y = 12, rule = B3/S23 10b2o$10bobo2b2o$11b3ob2o2$7b2o$8bo$8bo$8b2o2$2ob3o$2o2bobo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 3 ]]

Pentoad 2 can be viewed as a century hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p6

x = 42, y = 11, rule = B3/S23 5b2o3b2o19b2o3b2o$5bobobobo11b2o6bobobobo$7bobo11bo2bo8bobo$6b2ob2o10b 3o6bo2bobo2bo$b3o2b2ob2o2bobob3o2bo4bo2bo2bobo2bo2bo$4o2b2ob2o2b2o3b2o 7b2o4bobo4b2o$b3o2b2ob2o2bobob3o2bo4bo2bo2bobo2bo2bo$6b2ob2o10b3o6bo2b obo2bo$7bobo11bo2bo8bobo$5bobobobo11b2o6bobobobo$5b2o3b2o19b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 3 HEIGHT 500 ]]

p6 found by Aleph on November 8, 2020 (click above to open LifeViewer) Catagolue: here

p7

x = 35, y = 35, rule = B3/S23 b2o$b2o4b3o$6bo6bo$5b2obobo2bo$b3o6b3o$o2bobob2o$o6bo$4b3o4b2o$11b2o3b 2o$17b2o2b2o$15bobo3b2o$15b2o$24b2o$18b2o4b2o$18b2o$20b2o$20b2o3bo$24b 3o$23bo2bo$23b2o2$31b2o$26b2o2bo$26b2o2bo$30b2o$33bo$29bobobo$28b2o3b o$27bo3b2o$27bobobo$27bo$29b2o$30bo2b2o$30bo2b2o$28b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 4 HEIGHT 500 ]]

p7 found by Period1GliderGun on June 4, 2025 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p8

x = 26, y = 25, rule = B3/S23 2o22b2o$2o22b2o3$2bo20bo$2o22b2o$bo22bo$2b4o14b4o$3b2o4b2o4b2o4b2o$4b 2o4b2o2b2o4b2o$4b2o2bobo4bobo2b2o$4b2o2b2o6b2o2b2o2$4b2o2b2o6b2o2b2o$ 4b2o2bobo4bobo2b2o$4b2o4b2o2b2o4b2o$3b2o4b2o4b2o4b2o$2b4o14b4o$bo22bo$ 2o22b2o$2bo20bo3$2o22b2o$2o22b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 4 HEIGHT 500 ]]

p8 found by iNoMed based on a partial by David Raucci (click above to open LifeViewer) Catagolue: here

x = 25, y = 18, rule = B3/S23 6bo$6b3o8b2o$9bo7bo$8bo6bobo$2o6bo3bo2b2o$bo11bo$bobo9bo$2b2o6b3o5b2o$ 5b3o9bobo$5bobo9b3o$5b2o5b3o6b2o$11bo9bobo$11bo11bo$8b2o2bo3bo6b2o$7bo bo6bo$7bo7bo$6b2o8b3o$18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 4 HEIGHT 500 ]]

p8 found by Nora Brown on September 28, 2022 (click above to open LifeViewer) Catagolue: here

x = 35, y = 20, rule = B3/S23 21b2o$17b2obobo$16bobobo$2b2o12bobo2b4o4b2o$o2bo13bobobo2bo4bobo$19bo 3bo7bo$o2bo14bo3b3o5b2ob2o$bo2bo10bo4bo2bob2o4bo2bo$2bobo5bobo2b3o2bo 4b2ob2obobo$3bo5bob2o11bo4bob2o$12bo4bobo5b4o$2b2o5bo2bo2b7o4bo$2b2o2b 2o3bobo8bobo$7b2o4bobo3b2obob2o$5bobo12bobo2bo$5b2o2bobo7bo2b2o$12bo6b 2o$8bo4bo2b2obo$8b2obo2bob2obobo$12b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 4 HEIGHT 500 ]]

p8 found by MathAndCode on February 20, 2025 (click above to open LifeViewer) Catagolue: here

p10

x = 18, y = 16, rule = B3/S23 12b2o$o12bo$3o9bo$3bo8b2o$2b2o11bo$16bo$5b2o3bo6bo$4bo2bo2bo4b2o$b2o4b o2bo2bo$o6bo3b2o$bo$2bo11b2o$4b2o8bo$5bo9b3o$4bo12bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 5 HEIGHT 500 ]]

p10 found by Nora Brown on September 23, 2022; also a B-heptomino hassler (click above to open LifeViewer) Catagolue: here

p14

x = 23, y = 25, rule = B3/S23 7bo$7b3o$10bo$9b2o3$12bo$11b3o$10bo2bo$10b2o$3bo$2b2o3b2o10bo$2b2o3b2o 5b2o3b2o$3bo10b2o3b2o$2bo2bo13bo$b3obo11bo2bo$bo3b2o10bob3o$2b2o3bo8b 2o3bo$3bob3o7bo3b2o$3bo2bo8b3obo$5bo10bo2bo$2o3b2o10bo$2o3b2o9b2o3b2o$ 5bo10b2o3b2o$17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 7 HEIGHT 500 ]]

p14 found by Carson Cheng and monomerised by iNoMed on June 9, 2023 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 36, y = 23, rule = B3/S23 b2o$b2o4b2o$6bob2ob2o$4b3obob4o13b2o$25b3o6b2o$4obob3o14bo4bo5bo$b2ob 2obo16b5obob3o$5b2o4b2o12bo4bobo$11b2o11b3o2bobo$18bo4bob3o$17b3o6b2o 5bo$16bo2bo2bo3b2o4bobo$16b2o4bo3b2o4bobo$6bo19b2o5bo$5bob2obob3o8bob 3o$4bo2bobob4o9b3o2bobo$4b7obo12bo4bobo$8bobo13b5obob3o$3bob2obo3bo11b o4bo5bo$3b2obobob2obo11b3o6b2o$7bobo3bo13b2o$9bo3b2o$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 7 HEIGHT 500 ]]

p14, found by David Raucci on June 10, 2026, and reduced by Period1GliderGun the same day (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p15

x = 39, y = 56, rule = B3/S23 33b2o$33bo$20b2o8b2obo$15b2o2bobo7bobob2o$15bo3bo9bobobo2bo$16b3ob4o6b o4b2o$20bo2bo9bo$14b3ob2o11bobob4o$13bo2bob2o9b5obo2bo$13b2o2bo11b2ob o$27b2obo$27bobo$15b2o11bo$15b2o3b3o$20bo2bo4b2o$22b2o4b2o2$17bo$16bo bo6b6o$19bobo2bo5b2o2b2o$7b2ob2o2b2obobob4o5bobo2bo$6bobobo2bo3bo2bo7b 2o2b2o$5bo4bo3bob3obob4o5bo2b4o$4bo4bob2o5bobobo2b3o5bo3bo$4b2o4bob5o 2bo2bo4b2ob2obo2bo$7bo9b2o3b3o3bob2obobo$2b10ob4o9b3o4b2o$2bo5bo2bobo 2bo3b4obobo2b3o$3b4o2b2o2bo6bo2bobo6bo$3o5bobobo12b3o2b2o$o2bo2bo3bob 2o10bo7b3o$b2o5b2o14b3o2b3o3bo$22b2o9bobo$21bo2b5o2b2obo$22bobobo3bob o$23bo2b5o2bo$24b2o4b3o$25bo2bo$25bob6o$23b2o2bobo3bo$22bobobo2bobobo $22bobo2bo3b2o$23bobobo2bo$25b5ob2o$24bo4bobo$22bo2b2o2bo2bo$22b2obob ob4o$25bo$25b2o2b4o$29bo2bo$28b2obo$26bo2bobobob2o$22b2obob2obo2b2obo $23bob2o3bobo$23bo2bo2bo2bo$24b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 8 HEIGHT 500 ]]

p15, found by Period1GliderGun on October 5, 2026. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 30, y = 20, rule = B3/S23 12b2o$12b2o2$12b4o$11bo3bo$11b2o$12b2o$12b2o$12bobo2b2o$13bo3b2o$24b3o $23bo3bo$22bo5bo$16b2o$2o3bo2bo3b2o2bobo2bo7bo$5o4b5o4b2obo7bo$2o3bo2b o3b2o3b2o$22bo5bo$23bo3bo$24b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 GPS 8 HEIGHT 500 ]]

p15, found by 8than888 on October 28, 2026. Also a traffic light hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p16

x = 26, y = 20, rule = B3/S23 14b2o$b2o7b2o4b4o$obo7b2o2b2ob3o$obob2o8bo8b2o$bobobo17bobo$3bo8bo7b2o bobo$3b2o15bobobo$3b3o5b2o9bo$3b3o3bo2bo8b2o$3b3o3b3o3bo4b3o$3b3o4bo3b 3o3b3o$3b2o8bo2bo3b3o$3bo9b2o5b3o$bobobo15b2o$obob2o7bo8bo$obo17bobobo $b2o8bo8b2obobo$6b3ob2o2b2o7bobo$6b4o4b2o7b2o$10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 8 HEIGHT 500 ]]

p16 found by David Raucci on October 12, 2021 (click above to open LifeViewer) Catagolue: here

x = 53, y = 49, rule = B3/S23 24b2o3b2o5b2o$22bo2bo3b2o3bo4bo$34bo$21bo5bo5bo6bo$21bo6bo5bo4b2o$27bo 2b2o2bo$22b2ob2o3b2o3bobo$3b2o3b2o14bo11bo$2bobo3b2o4b4o21b2o$b3o9b6o 7b2o6b2o3b2o$b2ob3o5bo2bobobob2o3b2o6b2o$b3ob2o6bo2bob2ob2o$b2o2b2o2b 2o3b3o8bo11bo$2bobo4b2o3b3o7bobo3b2o3b2ob2o$3bo23bo2b2o2bo$18b2ob2o4bo 5bo6bo$5b2o6b2o3b2obo6bo5bo5bo$2o3b2o6b2o12bo$2o20bo4bo3b2o3bo2bo$16bo 7b2o5b2o3b2o$3b3o3b2o4bobo$3b3o3b2o2b2o2b2o4bo$2obo2bo6b2ob3o3b3o11b2o 3b2o$obobo2bo5b3ob2o2bo2bo10bobo3b2o4b4o$b6o9b3o2b2o7b2o2b3o9b6o$2b4o 4b2o3bobo10bo2bo2b2ob3o5bo2bobobo$10b2o3b2o11b3o3b3ob2o6bo2bob2o$29bo 4b2o2b2o2b2o3b3o$35bobo4b2o3b3o$15b2o3b2o5b2o7bo$13bo2bo3b2o3bo4bo20b 2o$25bo12b2o6b2o3b2o$12bo5bo5bo6bob2o3b2o6b2o$12bo6bo5bo4b2ob2o$18bo2b 2o2bo23bo$13b2ob2o3b2o3bobo7b3o3b2o4bobo$15bo11bo8b3o3b2o2b2o2b2o$30b 2ob2obo2bo6b2ob3o$17b2o6b2o3b2obobobo2bo5b3ob2o$12b2o3b2o6b2o7b6o9b3o$ 12b2o21b4o4b2o3bobo$16bo11bo14b2o3b2o$15bobo3b2o3b2ob2o$18bo2b2o2bo$ 12b2o4bo5bo6bo$12bo6bo5bo5bo$18bo$13bo4bo3b2o3bo2bo$15b2o5b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 8 HEIGHT 500 ]]

p16 found by David Raucci (WHEN?) (click above to open LifeViewer) Catagolue: here

x = 17, y = 35, rule = B3/S23 o3bo3bo3bo$o2bobobobo2bo$4b2ob2o2$bo2b2ob2o2bo$obo7bobo$b2ob2ob2ob2o$b 2o2bobo2b2o$3bobobobo$4bo3bo2$15b2o$15bo$13bobo$7b2o4b2o$7bobo$9b2o$8b 2o$3b2o$2bobo$2bo$b2o2$9b3o3b2o$6bo2b3o3b2o$5bobo2b2o$6bo3$11b2o$9bob 2o$8bo$11bo$7b2obo$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 8 HEIGHT 500 ]]

p16 found by Carson Cheng and monomerised by iNoMed on June 9, 2023 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 13, y = 13, rule = B3/S23 7bo$6bobo$3o4bo$b3o2$5b3o$4bo2bo$4bo$5bo$9b3o$5bo4b3o$4bobo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 32 GPS 8 HEIGHT 500 ]]

p16 century shuttle (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p17

x = 174, y = 103, rule = B3/S23 120b2o22b2o$121bo22bo$121bob2o16b2obo$122bo20bo$126bo12bo$124bo16bo$118b 2o5bo14bo5b2o$119bo26bo$119bobo4bo12bo4bobo$120b2o3b3o10b3o3b2o$124b2o b2o8b2ob2o$123b3ob3o6b3ob3o$114b2o8b2ob2o8b2ob2o8b2o$114bo10b3o10b3o10b o$111b2obo11bo12bo11bob2o$110bobob2o5b2o20b2o5b2obobo$109bo11b2o20b2o 11bo$108bo4b3o10b2o10b2o10b3o4bo$107bo4bo2bo10b2o10b2o10bo2bo4bo$106b o4bobo8bo20bo8bobo4bo$106b2o2bobo8b3o18b3o8bobo2b2o$28b2o22b2o55bobo8b 2ob2o16b2ob2o8bobo$29bo22bo51b4obo9b3ob3o14b3ob3o9bob4o$29bob2o16b2ob o51bo2bob2o9b2ob2o16b2ob2o9b2obo2bo$30bo20bo69b3o3b2o8b2o3b3o$34bo12b o74bo4bobo6bobo4bo$32bo16bo48bo30bo6bo30bo$26b2o5bo14bo5b2o42b3o13bo14b 2o4b2o14bo13b3o$27bo26bo37bo8bo11b3o34b3o11bo8bo$27bobo4bo12bo4bobo37b 3o5b2o5b2o3b5o32b5o3b2o5b2o5b3o$28b2o3b3o10b3o3b2o41bo11b2o2b2o3b2o30b 2o3b2o2b2o11bo$32b2ob2o8b2ob2o44bo8bo8b5o32b5o8bo8bo$31b3ob3o6b3ob3o43b o2bo4b3o8b3o34b3o8b3o4bo2bo$22b2o8b2ob2o8b2ob2o8b2o38bo2b5o8bo36bo8b5o 2bo$22bo10b3o10b3o10bo36bo3b2o3b2o2b2o44b2o2b2o3b2o3bo$19b2obo11bo12b o11bob2o38b5o3b2o5b2o30b2o5b2o3b5o$18bobob2o5b2o20b2o5b2obobo38b3o11b o32bo11b3o$17bo11b2o20b2o11bo38bo13b3o26b3o13bo$16bo4b3o10b2o10b2o10b 3o4bo11b2o40bo26bo$15bo4bo2bo10b2o10b2o10bo2bo4bo11bo$14bo4bobo8bo20b o8bobo4bo9bo$14b2o2bobo8b3o18b3o8bobo2b2o9b2o$17bobo8b2ob2o16b2ob2o8b obo14bo3bo$12b4obo9b3ob3o14b3ob3o9bob4o5b5o4bo34bo26bo$12bo2bob2o9b2o b2o16b2ob2o9b2obo2bo4bo9bo18bo13b3o26b3o13bo$29b3o3b2o8b2o3b3o21bob2o 5bo6bo11b3o11bo32bo11b3o$30bo4bobo6bobo4bo21b2obo13b3o8b5o3b2o5b2o30b 2o5b2o3b5o$6bo30bo6bo31bo16bo6b2o3b2o2b2o44b2o2b2o3b2o3bo$6b3o13bo14b 2o4b2o14bo13b3o6b2o8bo5bo2b5o8bo36bo8b5o2bo$o8bo11b3o34b3o11bo5b2o2bo bo8b3obo4b3o8b3o34b3o8b3o4bo2bo$3o5b2o5b2o3b5o32b5o3b2o5b2o4b2o4b2o17b o8b5o32b5o8bo8bo$3bo11b2o2b2o3b2o30b2o3b2o2b2o16b2o4b2o16b2o2b2o3b2o30b 2o3b2o2b2o11bo$2bo8bo8b5o32b5o8bo17b2o4b2o4b2o5b2o3b5o32b5o3b2o5b2o5b 3o$2bo2bo4b3o8b3o34b3o8b3o4bob3o8bobo2b2o5bo11b3o34b3o11bo8bo$6bo2b5o 8bo36bo8b5o2bo5bo8b2o6b3o13bo14b2o4b2o14bo13b3o$4bo3b2o3b2o2b2o44b2o2b 2o3b2o6bo16bo31bo6bo30bo$9b5o3b2o5b2o30b2o5b2o3b5o8b3o13bob2o21bo4bob o6bobo4bo$10b3o11bo32bo11b3o11bo6bo5b2obo21b3o3b2o8b2o3b3o$11bo13b3o26b 3o13bo18bo9bo4bo2bob2o9b2ob2o16b2ob2o9b2obo2bo$27bo26bo34bo4b5o5b4obo 9b3ob3o14b3ob3o9bob4o$90bo3bo14bobo8b2ob2o16b2ob2o8bobo$95b2o9b2o2bob o8b3o18b3o8bobo2b2o$96bo9bo4bobo8bo20bo8bobo4bo$95bo11bo4bo2bo10b2o10b 2o10bo2bo4bo$27bo26bo40b2o11bo4b3o10b2o10b2o10b3o4bo$11bo13b3o26b3o13b o38bo11b2o20b2o11bo$10b3o11bo32bo11b3o38bobob2o5b2o20b2o5b2obobo$9b5o 3b2o5b2o30b2o5b2o3b5o38b2obo11bo12bo11bob2o$4bo3b2o3b2o2b2o44b2o2b2o3b 2o3bo36bo10b3o10b3o10bo$6bo2b5o8bo36bo8b5o2bo38b2o8b2ob2o8b2ob2o8b2o$ 2bo2bo4b3o8b3o34b3o8b3o4bo2bo43b3ob3o6b3ob3o$2bo8bo8b5o32b5o8bo8bo44b 2ob2o8b2ob2o$3bo11b2o2b2o3b2o30b2o3b2o2b2o11bo41b2o3b3o10b3o3b2o$3o5b 2o5b2o3b5o32b5o3b2o5b2o5b3o37bobo4bo12bo4bobo$o8bo11b3o34b3o11bo8bo37b o26bo$6b3o13bo14b2o4b2o14bo13b3o42b2o5bo14bo5b2o$6bo30bo6bo30bo48bo16b o$30bo4bobo6bobo4bo74bo12bo$29b3o3b2o8b2o3b3o69bo20bo$12bo2bob2o9b2ob 2o16b2ob2o9b2obo2bo51bob2o16b2obo$12b4obo9b3ob3o14b3ob3o9bob4o51bo22b o$17bobo8b2ob2o16b2ob2o8bobo55b2o22b2o$14b2o2bobo8b3o18b3o8bobo2b2o$14b o4bobo8bo20bo8bobo4bo$15bo4bo2bo10b2o10b2o10bo2bo4bo$16bo4b3o10b2o10b 2o10b3o4bo$17bo11b2o20b2o11bo$18bobob2o5b2o20b2o5b2obobo$19b2obo11bo12b o11bob2o$22bo10b3o10b3o10bo$22b2o8b2ob2o8b2ob2o8b2o$31b3ob3o6b3ob3o$32b 2ob2o8b2ob2o$28b2o3b3o10b3o3b2o$27bobo4bo12bo4bobo$27bo26bo$26b2o5bo14b o5b2o$32bo16bo$34bo12bo$30bo20bo$29bob2o16b2obo$29bo22bo$28b2o22b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 3 GPS 9 HEIGHT 500 ]]

p17, found by 8than888 on October 28, 2026, and reduced by Period1GliderGun. Also a traffic light hassler. (click above to open LifeViewer) RLE: here Plaintext: here

p18

x = 29, y = 29, rule = B3/S23 10bo18b$10b3o16b$13bo15b$12b2o15b$29b$29b$29b$29b$14b2o13b$14bob2o11b$ 2o12b4o11b$bo13b2ob2o9b$bobo13b3o9b$2b2o13b2obo8b$8b3o7b3o8b$8bob2o13b 2o2b$9b3o13bobob$9b2ob2o13bob$11b4o12b2o$11b2obo14b$13b2o14b$29b$29b$29b$ 29b$15b2o12b$15bo13b$16b3o10b$18bo10b! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 9 HEIGHT 500 STARTFROM 2 ]]

Four eaters hassling four bookends (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 36, y = 26, rule = B3/S23 3b2o26b2o$3bo28bo$5bo24bo$4b4o20b4o$3bo4bo18bo4bo$3b5obo16bob2ob2o$b2o 4bobo16bo2bo3b2o$o2bo5b2o14b2obo2b2o2bo$2obobobo2bo6b2o4bo4bobobob2o$ 3bo2bob3o6bo2bo2bob2o2bo2bo$3b2obo3bo7bobo2bo3bobob2o$5bobob2o7b3o4b2o bobo$3b2o2bobo16bobo2b2o$3bo3bobo16bobo3bo$b2o2bobob2o4b3o7b2obobo2b2o $o2b2obobo3bo2bobo7bo3bob2o2bo$2obo2bo2b2obo2bo2bo6b3obo2bob2o$bobobob o4bo4b2o6bo2bobobobo$o2b2o2bob2o14b2o5bo2bo$b2o3bo2bo16bobo4b2o$3b2ob 2obo16bob5o$3bo4bo18bo4bo$4b4o20b4o$5bo24bo$3bo28bo$3b2o26b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 GPS 9 HEIGHT 500 ]]

p18 found by Jason Summers on April 10, 2001 (click above to open LifeViewer) Catagolue: here

x = 28, y = 28, rule = B3/S23 10b2o$10bobo2b2o$12bo3bo$8b4ob3o$8bo2bobo$11bobob3o$12b2obo2bo$17b2o$ 2o2bo$o2bobo14b2o$bob2o4b3o8bobo$2bo6bobo10bo2b2o$3b2o3bo2bo9b2obobo$ 4bo3b2o14bo$2bo18b4o$2b2o17bo3b2o$15b3o4b3o2bo$17bo6bob2o$14bob2o6bo$ 14b2o7b2o3$18bo$14b2obobo$12bo2bob2o$12b2o2bo$17bobo$18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 9 HEIGHT 500 ]]

p18 (WHO? WHEN?) (click above to open LifeViewer) Catagolue: here

x = 21, y = 18, rule = B3/S23 3bo5bo$2bobo4b3o$2bobo7bo$2o2b2o5b2o$bobo$o2b3o$obo3bo$bob3obo5b3o$3b o3bo4bo2bo$3bo3bo4bo$bob3obo5bo$obo3bo10b3o$o2b3o7bo4b3o$bobo8bobo$2o 2b2o7bo$2bobo$2bobo$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 18 GPS 9 HEIGHT 500 ]]

p18 century shuttle by iNoMed on February 18, 2025, a combination of the p16 and the p20 with a 50P9 as support. Also a corner dot sparker. (click above to open LifeViewer) Catagolue: here

p20

x = 25, y = 17, rule = B3/S23 b2o3b2o9b2o3b2o$bobo3bo9bo3bobo$3bo3bob2o3b2obo3bo$3b2ob2obobobobob2ob 2o$7bo3bobo3bo$2bob2ob2o2bobo2b2ob2obo$2b2obo5bobo5bob2o2$6bo3bo3bo3bo $2ob2o3bo7bo3b2ob2o$o23bo$b2o2bo7b3o3bo2b2o$2b3o8bobo4b3o$2b3o7bo2bo4b 3o$b2o2bo6b2o5bo2b2o$o23bo$2ob2o15b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 10 HEIGHT 500 ]]

p20 in jslife and reduced by David Raucci (click above to open LifeViewer) Catagolue: here

x = 23, y = 17, rule = B3/S23 16bo$14b3o$13bo$13b2o$2o$o2b2o16b2o$b2ob2o12b2o2bo$4b2o3b2o6b2ob2o$4b 2o3bo2bo4b2o$b2ob2o4b3o4b2o$o2b2o6bo5b2ob2o$2o16b2o2bo$21b2o$8b2o$9bo$ 6b3o$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 10 HEIGHT 500 ]]

p20 bookend shuttle found by David Raucci on August 23, 2021 (click above to open LifeViewer) Catagolue: here

x = 38, y = 36, rule = B3/S23 7b2o$8bo$7bo12b2o9bo$7b2o5bo5bo9bobo$10b2obobo5bo8bobo$5b5obobobo4b2o 7b2obob2obo$4bo4bobobobob2o9bo3bobob2o$5b3obo3bobobob5o4b2ob2o$7bo3b2o 2bobobo4bo3bo4bo$8b2obo3bo3bob3o3bo2bob2o$16b2o3bo6bo$17bob2o8b5o$34bo $8bo18b7o$7bobo16bo$7bobo8b2o5bo2bob2o$2bob2obob2o5bo2bo6bo4bo$2b2obob o3bo4bobo7b2ob2o$7b2ob2o4b3o7bo3bobob2o$6bo4bo15b2obob2obo$6b2obo2bo 15bobo$11bo16bobo$4b7o18bo$3bo$4b5o8b2obo$9bo6bo3b2o$4b2obo2bo3b3obo3b o3bob2o$4bo4bo3bo4bobobo2b2o3bo$5b2ob2o4b5obobobo3bob3o$2obobo3bo9b2ob obobobo4bo$ob2obob2o7b2o4bobobob5o$5bobo8bo5bobob2o$5bobo9bo5bo5b2o$6b o9b2o12bo$29bo$29b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 GPS 10 HEIGHT 500 ]]

p20 found by David Raucci on March 7, 2023 (click above to open LifeViewer) Catagolue: here

p21

x = 40, y = 29, rule = B3/S23 31bobo3b2o$30bo2bo2bo2bo$16b2o11bo9bo$16bobo9b4o4bo2bo$17b2o7b2o3b4o3b 2o$13b2o11bo2bo4b4o$12bobo11bo9bo$12bo13bo2bo2bo2bo$11b2o14b2o3bobo$ 22b2o$21bobo$13b2o5b2o$13b2o6b2o4$17b2o6b2o$18b2o5b2o$16bobo$16b2o$5bo bo3b2o14b2o$4bo2bo2bo2bo13bo$3bo9bo11bobo$2b4o4bo2bo11b2o$2o3b4o3b2o7b 2o$o2bo4b4o9bobo$o9bo11b2o$o2bo2bo2bo$b2o3bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 11 HEIGHT 500 ]]

p21 (WHO? WHEN?) (click above to open LifeViewer) Catagolue: here

p22

x = 24, y = 19, rule = B3/S23 13b2o$13bo$11bobo$bo9b2o$obo$bo$5b2o$5bobo$7b2o13b2o$2o4b2o8b2o4b2o$2o 13b2o$16bobo$17b2o$22bo$21bobo$11b2o9bo$10bobo$10bo$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 11 HEIGHT 500 ]]

p22 found by Mitchell Riley on July 23, 2022. Also a Pi-heptomino hassler. (click above to open LifeViewer) Catagolue: here

x = 18, y = 26, rule = B3/S23 4bo5bo$4b2o3b2o$4b2o3b2o$5bo3bo4$5b2o$5bobo$7b2o4b2o$2o4b2o5b2o$2o3$ 16b2o$3b2o5b2o4b2o$3b2o4b2o$10bobo$11b2o4$8bo3bo$7b2o3b2o$7b2o3b2o$7bo 5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 11 HEIGHT 500 ]]

p22 found by Mitchell Riley on April 21, 2023. The two p22s in this section share many similarities and even a few cells are the same throughout the entire cycle, but they are distinct enough to be considered different (click above to open LifeViewer) Catagolue: here

p24

x = 39, y = 37, rule = B3/S23 35b2o$2b2o31bo$3bo33bo$bo28b2ob5o$b5ob2o19bo2bobo$5bobo2bo17b2obo3b3o$ b3o3bob2o20b2o5bo$o5b2o22bo3bo3bo$o3bo3bo20b3ob5o$b5ob3o20bo2bo$5bo2bo 20b2o5b2o$b2o5b2o20b2o2bo2bo$bo2bo2b2o21bo3b2o$3b2o3bo$14b2o13b2o$8b2o 4bo2bo11b3o$7b3o5b3o11b3o$7b3o6bo12b3ob2o$4b2ob3o19b3ob2o$4b2ob3o12bo 6b3o$7b3o11b3o5b3o$7b3o11bo2bo4b2o$8b2o13b2o$30bo3b2o$3b2o3bo21b2o2bo 2bo$bo2bo2b2o20b2o5b2o$b2o5b2o20bo2bo$5bo2bo20b3ob5o$b5ob3o20bo3bo3bo$ o3bo3bo22b2o5bo$o5b2o20b2obo3b3o$b3o3bob2o17bo2bobo$5bobo2bo19b2ob5o$b 5ob2o28bo$bo33bo$3bo31b2o$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 12 HEIGHT 500 ]]

p24 found by Mitchell Riley on August 27, 2022, reduced by David Raucci the next day (click above to open LifeViewer) Catagolue: here

x = 35, y = 35, rule = B3/S23 22bo$10b2o9bobo$6b2o2b2o2b2o5bobo$6b2o2bo2bobo4b2ob3o$12b3o11bo$12b2o 6b2ob3o$20b2obo7b2o$31b2o$4bo11b2o$3bobo8bo2bo$3bobo8b3o14b3o$b3ob2o8b o16b2o$o28b2o$b3ob2o22b3o$3bob2o17b2o4bobo$23b2o6b2o$24bobo$8b2o15b2o$ 8bobo$2b2o6b2o$2bobo4b2o17b2obo$3b3o22b2ob3o$4b2o28bo$b2o16bo8b2ob3o$b 3o14b3o8bobo$17bo2bo8bobo$17b2o11bo$2b2o$2b2o7bob2o$9b3ob2o6b2o$8bo11b 3o$9b3ob2o4bobo2bo2b2o$11bobo5b2o2b2o2b2o$11bobo9b2o$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 12 HEIGHT 500 ]]

p24 found by Mitchell Riley on October 27, 2022 (click above to open LifeViewer) Catagolue: here

x = 24, y = 29, rule = B3/S23 b2ob2obo$2o2b2ob2o$8bo$2o$2o5b2o$7b2o6b6ob2o$o14b6ob2o$2ob2o2b2o13b2o$ bob2ob2o7b2o5b2o$15b2o5b2o$15b2o5b2o$15b2o$8b3o4b2ob6o$10bo4b2ob6o$7bo b2o$bo5b2o$b3o10b2o$4bo9b2o$3b2o6b2o$4b3o4b2o$5b3o$4bobobo$3b2obobo$3b obobo$5bobobo$3bobo2b2o$2bob2o$2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBLAUNCH THUMBSIZE 2 ZOOM 16 HEIGHT 500 WIDTH 500 GPS 12 ]]

p24, found by Mitchell Riley on January 7, 2023 and reduced by iNoMed the next day (click above to open LifeViewer) Catagolue: here

p25

x = 41, y = 41, rule = B3/S23 16b2o3b2o$16b2o3b2o$16b2o3b2o$16b2o3b2o$12b2o3b2ob2o3b2o$12bo2bobo3bob o2bo$b2o10bob2o5b2obo$2bo11bo9bo$bo13b4ob4o$b2o6b2o6bobobo$3bo4bo2bo$b 4o13b3o$o$2o4bo3bobo25b2o$6b4obo26bo$18b2o19bo$10b2o6bobo9b2o6b2o$10b 2o3bo4bo8bo2bo4bo$15bo3b2o15b4o$6b4obo28bo$2o4bo3bobo15bobo3bo4b2o$o 28bob4o$b4o15b2o3bo$3bo4bo2bo8bo4bo3b2o$b2o6b2o9bobo6b2o$bo19b2o$2bo 26bob4o$b2o25bobo3bo4b2o$40bo$20b3o13b4o$29bo2bo4bo$19bobobo6b2o6b2o$ 17b4ob4o13bo$16bo9bo11bo$15bob2o5b2obo10b2o$14bo2bobo3bobo2bo$14b2o3b 2ob2o3b2o$18b2o3b2o$18b2o3b2o$18b2o3b2o$18b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 13 HEIGHT 500 ]]

p25 found by David Raucci on October 5, 2021 (click above to open LifeViewer) Catagolue: here

x = 39, y = 41, rule = B3/S23 5bo$5b3o$8bo$7b2o2$10b2o$9bobo$9b2o3$8b2o$6bob3o$11bo$2o2b3o2b2o$2o2b 2o2bo$4bo2bo5bo$5b2o6bo2b3o$18bo8b2o$15bob2o9bo$4b2o9b2o11bobo$4b2o2b 2o19b2o2b2o$8bobo11b2o9b2o$10bo9b2obo$10b2o8bo$20b3o2bo6b2o$25bo5bo2bo $30bo2b2o2b2o$28b2o2b3o2b2o$27bo$28b3obo$29b2o3$28b2o$27bobo$27b2o2$ 30b2o$30bo$31b3o$33bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 13 HEIGHT 500 ]]

p25 found by Carson Cheng on October 1, 2022. Uses 36P25 as a sparker (click above to open LifeViewer) Catagolue: here

x = 60, y = 38, rule = B3/S23 16b2o24b2o$12b2o2bo26bo2b2o$11bo2bobo26bobo2bo$7b2obobobob2o24b2obobob ob2o$7bob2o5bo26bo5b2obo$12b3o3bo22bo3b3o$8b4obob3obo20bob3obob4o$7bo 11bo20bo11bo$8b3o5b3o22b3o5b3o$10bo5bo26bo5bo$11b5o28b5o$27bo4bo$26b3o 2b3o$25bo2bo2bo2bo$15bo9b2o6b2o9bo$14bobo26bobo$2o12bobo26bobo12b2o$bo 12b3o26b3o12bo$bobo18b2o12b2o18bobo$2b2o18bobo10bobo18b2o$9b3o12bo10bo 12b3o$9bobo12b2o8b2o12bobo$9bobo36bobo$10bo38bo4$10b5o30b5o$9bo5bo28bo 5bo$7b3o5b3o24b3o5b3o$6bo11bo22bo11bo$6bob3obob4o24b4obob3obo$7bo3b3o 32b3o3bo$9bo5b2obo22bob2o5bo$8b2obobobob2o22b2obobobob2o$9bobo2bo30bo 2bobo$9bo2b2o32b2o2bo$8b2o40b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 13 HEIGHT 500 ]]

p25 found by Period1GliderGun on April 2, 2024 (click above to open LifeViewer) Catagolue: here

p26

x = 35, y = 26, rule = B3/S23 20bo$19bobo$19bobo$5b2o5b2o4b2ob2o$5bo6bo$7bob2obo5b2ob4ob2o$6b2obobo 6b2obo2bobobo$6bo3bo17bo2b2o$4bobo20b2obobo$3bobo24bo$3bo7b2o14b4o$2ob 2o5bobo14bo3b2o$o2bo5b3o16b3o2bo$bo2b3o16b3o5bo2bo$2b2o3bo14bobo5b2ob 2o$4b4o14b2o7bo$4bo24bobo$2bobob2o20bobo$2b2o2bo17bo3bo$6bobobo2bob2o 6bobob2o$7b2ob4ob2o5bob2obo$22bo6bo$12b2ob2o4b2o5b2o$13bobo$13bobo$14b o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 14 HEIGHT 500 ]]

p26 found by Nora Brown on March 1, 2024. (click above to open LifeViewer) Catagolue: here

p27

x = 62, y = 28, rule = B3/S23 29b2o$29b2o2$3bo28b2o$2bobo26bo$2bobo10bo3b2o11b2o$2o2b2o8bobobobo$bo bo6b2o2bobobo39bo$o2b4o3bobobobob2o7b2o28bobo$obo4bo3b2obo2bo3bo3bo2b o12b2o3bo10bobo$bob3obo6bo3bo6b3o13bobobobo8b2o2b2o$3bob2o6bo4bo3bo3b o16bobobo2b2o6bobo$3bob2o6bo4bo3bo19b2obobobobo3b4o2bo$bob3obo6bo3bo21b o3bo2bob2o3bo4bobo$obo4bo3b2obo2bo3bo21bo3bo6bob3obo$o2b4o3bobobobob2o 19bo3bo4bo6b2obo$bobo6b2o2bobobo16bo3bo3bo4bo6b2obo$2o2b2o8bobobobo13b 3o6bo3bo6bob3obo$2bobo10bo3b2o12bo2bo3bo3bo2bob2o3bo4bobo$2bobo28b2o7b 2obobobobo3b4o2bo$3bo39bobobo2b2o6bobo$41bobobobo8b2o2b2o$28b2o11b2o3b o10bobo$30bo26bobo$28b2o28bo2$31b2o$31b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 14 HEIGHT 500 ]]

p27 found by Carson Cheng on August 15, 2022 and reduced by Lucy D'Agostino on August 12, 2023 (click above to open LifeViewer) Catagolue: here

p28

x = 57, y = 21, rule = B3/S23 31b2o$31bo$29bobo$14bo14b2o$10b2obobo29b2ob2o4b2o$10b2obobo28bob2obo4b o$3b2o8bob2o27bo4bob2obo$4bo5b4o2bo25b2ob4obobo2b2o$3bo6bo3b3o6bo17bob obo2bo4bobo$3b2o5b4o2bo5b3o6b2o8bob2o2bo2b4o2bo$b2o2bo4bo2bob2o5bo2bo 5bo2bo5b2obo2bo4bo2b2o$o2b4o2bo2b2obo8b2o6b3o5bo2b4o5b2o$bobo4bo2bobob o17bo6b3o3bo6bo$2o2bobob4ob2o25bo2b4o5bo$2bob2obo4bo27b2obo8b2o$2bo4bo b2obo28bobob2o$b2o4b2ob2o29bobob2o$26b2o14bo$25bobo$25bo$24b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 14 HEIGHT 500 ]]

p28 found by Carson Cheng on August 28, 2022 based on a partial by Mitchell Riley (click above to open LifeViewer) Catagolue: here

x = 49, y = 49, rule = B3/S23 13b2o19b2o$13bobo2b2o9b2o2bobo$10bo4bo3bo9bo3bo4bo$10b5ob3o11b3ob5o$14b obo15bobo$10b5obo15bob5o$9bo5bo17bo5bo$9b2o2b2o19b2o2b2o2$6b2o33b2o$2b 2obobo33bobob2o$3bobo12b3o7b3o12bobo$3bobo14bo7bo14bobo$2obobobo9bob2o 7b2obo9bobobob2o$o2b3obo9b2o11b2o9bob3o2bo$b2o3bo35bo3b2o$3b3o16b2ob2o 16b3o$3bo9b2o8bobo8b2o9bo$bobo7bo2bo6bobobobo6bo2bo7bobo$b2o8bobo7b2o 3b2o7bobo8b2o$11b3o21b3o$18b2o9b2o$16bo2bo9bo2bo$16b3o11b3o2$16b3o11b 3o$16bo2bo9bo2bo$18b2o9b2o$11b3o21b3o$b2o8bobo7b2o3b2o7bobo8b2o$bobo7b o2bo6bobobobo6bo2bo7bobo$3bo9b2o8bobo8b2o9bo$3b3o16b2ob2o16b3o$b2o3bo 35bo3b2o$o2b3obo9b2o11b2o9bob3o2bo$2obobobo9bob2o7b2obo9bobobob2o$3bo bo14bo7bo14bobo$3bobo12b3o7b3o12bobo$2b2obobo33bobob2o$6b2o33b2o2$9b2o 2b2o19b2o2b2o$9bo5bo17bo5bo$10b5obo15bob5o$14bobo15bobo$10b5ob3o11b3o b5o$10bo4bo3bo9bo3bo4bo$13bobo2b2o9b2o2bobo$13b2o19b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 14 HEIGHT 500 ]]

p28 found by Mitchell Riley in 2022 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 40, y = 40, rule = B3/S23 18b2o$13b2o2bo$13b2o2bo$17b2o$20bo$16bobobo$15b2o3bo$14bo3b2o$14bobob o$14bo$16b2o19b2o$17bo2b2o8b3o4b2o$17bo2b2o4bo6bo$b2o12b2o9bo2bobob2o $b2o4b3o17b3o6b3o$6bo6bo17b2obobo2bo$5b2obobo2bo18bo6bo$b3o6b3o14b2o4b 3o$o2bobob2o18b2o$o6bo$4b3o4b2o7b2o$11b2o5b2obo$18bo$18b3o3$12b2o$14b o2b2o$14bo2b2o$13b2o$11bo$11bobobo$11bo3b2o$12b2o3bo$13bobobo$17bo$14b 2o$10b2o2bo$10b2o2bo$15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 14 HEIGHT 500 ]]

p28 shuttle found by cvojan on September 10, 2022 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p29

x = 69, y = 54, rule = B3/S23 49b2o$50bo$46bobo$42bo2bob6o$42b4o6bo$10b2o34b5o$10b2o5bo24b3obo$16bo bo22bo2b2obo$17bo23b2o4bo$9b3o38bo3bo$8bo3bo34bo4b3o4b2o$8bo3bo2b3o24b 2o5bo3bo5b2o$8bo3bobo3bo24bo6bobo$3b2o4b3o2bo3bo24bobo$3bo10bo3bo25b2o 4bo$2obo11b3o33bo$o2bob2o43b3o5bo$2b2obo17b2o16b2o9bo4bobo$3bobo16bob o2b2o13bo15bo$2bo2b2o15bobo2b2o13bobo3b2o$3b2o2bo5b2o8bo19b2o3b2o$4bo b2o6bo4b2o26b3o$4bobo4b3o6bo26bobo$3b2obobo2bo5b3o11b2o15bobo$7b2o8bo 11b2obo16b2o$21b2o6bo$21b2o6b3o$37b3o6b2o$39bo6b2o$18b2o16bob2o11bo8b 2o$18bobo15b2o11b3o5bo2bobob2o$19bobo26bo6b3o4bobo$19b3o26b2o4bo6b2ob o$19b2o3b2o19bo8b2o5bo2b2o$19b2o3bobo13b2o2bobo15b2o2bo$10bo15bo13b2o 2bobo16bobo$9bobo4bo9b2o16b2o17bob2o$10bo5b3o43b2obo2bo$17bo33b3o11bo b2o$18bo4b2o25bo3bo10bo$23bobo24bo3bo2b3o4b2o$16bobo6bo24bo3bobo3bo$8b 2o5bo3bo5b2o24b3o2bo3bo$8b2o4b3o4bo34bo3bo$14bo3bo38b3o$21bo4b2o23bo$ 21bob2o2bo22bobo$22bob3o24bo5b2o$18b5o34b2o$16bo6b4o$16b6obo2bo$20bob o$18bo$18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 15 HEIGHT 500 ]]

p29, found by David Raucci on June 10, 2026 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p30

x = 34, y = 25, rule = B3/S23 13bo2bob2obo2bo$13b4ob2ob4o$13bo2bob2obo2bo$30b3o2$29bo3bo$29bo3bo2$b 3o26b3o2$o3bo15b3o$o3bo8b2o5bobo7b3o$11bo2bo4bo2bo$b3o7bobo5b2o8bo3bo$ 11b3o15bo3bo2$b3o26b3o2$o3bo$o3bo2$b3o$9bo2bob2obo2bo$9b4ob2ob4o$9bo2b ob2obo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 15 HEIGHT 500 ]]

p30 found by David Raucci on October 11, 2021 (click above to open LifeViewer) Catagolue: here

x = 27, y = 21, rule = B3/S23 26bo$24b3o$23bo$23b2o5$2b2o6b2o9b2o$bo2bo4bo2bo7b2o$6o2b6o7bobo$bo2bo 4bo2bo9b2o$2b2o6b2o2$14bo$14bo$14bo$18bo$17b2o$17b2o$17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 15 HEIGHT 500 ]]

p30 found by cvojan on October 2, 2022 and reduced by iNoMed on December 30, 2022 (click above to open LifeViewer) Catagolue: here

x = 57, y = 36, rule = B3/S23 4b2o31bo$4b2o30bobo$6b2o21b2o2bobobo13b2o$2b4o2bo20bo3bobo15b2o$bo3bo 3bo20b3obo14b2o$o2bo31bo12bo2b4o$ob5o23b3obo12bo3bo2bo$bo6bo20bo2b2o$ 3bobo3bo18bob2o18b7o$2b2o4bo18bo2bob3o13bo7bo$5bobo19b2o6bo11bo3bobob o$3ob3o24bo2bo13bo4b2o$o2bo2bo5bo20bo15bobo$bo2b3o5bo37b3ob3o$2obo2bo 4b2o31bo5bo2bo2bo$3bob2o28b2o7bo5b3o2bo$3bobo3b3o21bo2bo7b2o4bo2bob2o $2b2obo3b3o10bo10b3o14b2obo2bo$o2bob2o14b3o10bo10b3o3bob2o$2obo2bo4b2o 7bo2bo21b3o3bobo$bo2b3o5bo7b2o28b2obo$o2bo2bo5bo31b2o4bo2bob2o$3ob3o37b o5b3o2bo$5bobo15bo20bo5bo2bo2bo$2b2o4bo13bo2bo24b3ob3o$bobobo3bo11bo6b 2o19bobo$o7bo13b3obo2bo18bo4b2o$7o18b2obo18bo3bobo$23b2o2bo20bo6bo$2b o2bo3bo12bob3o23b5obo$2b4o2bo12bo31bo2bo$6b2o14bob3o20bo3bo3bo$4b2o15b obo3bo20bo2b4o$4b2o13bobobo2b2o21b2o$18bobo30b2o$19bo31b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 15 HEIGHT 500 ]]

p30 found by Caleb R. Hilton on January 31, 2025 (click above to open LifeViewer) Catagolue: here

p32

x = 56, y = 47, rule = B3/S23 24bo10bo$23bobo2bo2bo2bobo$24b2o2b4o2b2o2$24b2ob2o2b2ob2o$25bob2o2b2ob o$24bo2bob2obo2bo$24bobo2b2o2bobo$3b2o3b2o13b2obo6bob2o$3b2o3b2o16bob 4obo$13b2o8b2obo6bob2o$13b2o3b2o4bobobo2bobobo$4b2o7bobo2b2o4bobobo2bo bobo$2b2obo3b2o3b2o9bo3b2o3bo$2b3o4b2o2$18b2o$5b2o6b2o3b2o$2o3b2o6b2o$ 2o30b2o5b2o3b2o$30bo2bo5b2o3b2o$9b2o4b3o12b3o16b2o$4b2o3b2o3bob2o13bo 17b2o3b2o$2o2bobo7b2o24b2o7bobo2b2o$2o3b2o17bo13b2obo3b2o3b2o$5b2o16b 3o12b3o4b2o$10b2o3b2o5bo2bo$10b2o3b2o5b2o30b2o$41b2o6b2o3b2o$36b2o3b2o 6b2o$36b2o2$45b2o4b3o$21bo3b2o3bo9b2o3b2o3bob2o$20bobobo2bobobo4b2o2bo bo7b2o$20bobobo2bobobo4b2o3b2o$19b2obo6bob2o8b2o$22bob4obo16b2o3b2o$ 19b2obo6bob2o13b2o3b2o$20bobo2b2o2bobo$20bo2bob2obo2bo$21bob2o2b2obo$ 20b2ob2o2b2ob2o2$20b2o2b4o2b2o$19bobo2bo2bo2bobo$20bo10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 16 HEIGHT 500 ]]

p32 found by David Raucci on October 5, 2021 (click above to open LifeViewer) Catagolue: here

x = 34, y = 31, rule = B3/S23 6b2o4b2o17bo$5bobo4b2o8b2o5b2obo$5bo14bobo4b2obobo$2b2ob2o2b2o6b2obo4b ob2obob2o$2b2obo17bob4obobo$5bob4o6bobobobobo3b2obo$5bobo3b6o3b2o2b3o 4bo$6bo15bo3bo$22bob2o$3bo19bobobo$18b2o6b2o$bob3o14bo$3b2obo$3bob2o 12b2o$4b3obo11bo6bo2$6bo6bo11bob3o$13b2o12b2obo$27bob2o$13bo14b3obo$6b 2o6b2o$6bobobo19bo$8b2obo$7bo3bo15bo$2bo4b3o2b2o3b6o3bobo$bob2o3bobobo bobo6b4obo$bobob4obo17bob2o$2obob2obo4bob2o6b2o2b2ob2o$bobob2o4bobo14b o$bob2o5b2o8b2o4bobo$2bo17b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 16 HEIGHT 500 ]]

p32 found by David Raucci on October 12, 2021 and reduced by Matthias Merzenich three days later (click above to open LifeViewer) Catagolue: here

x = 39, y = 37, rule = B3/S23 30b2o$4bo5bo17b2obo$4bo5bo16bo2bo$2b4o3b4o14bo2bo4bo$b2o9b2o13bo2bo3bo bo$3o2b2ob2o2b3o13b3o3b2o$2o3b2ob2o3b2o$b3obo3bob3o14b3o3b2o$2b2o7b2o 14bo2bo3bobo$3b3o3b3o15bo2bo4bo$5b2ob2o17bo2bo$4bobobobo17b2obo$5bo3bo 15bo4b2o$21bo2bo$15b2o4bobo$16b2o6bobo$14bobo8bo$14b2o2$23b2o$13bo8bob o$12bobo6b2o$15bobo4b2o$14bo2bo$7b2o4bo15bo3bo$7bob2o17bobobobo$8bo2bo 17b2ob2o$3bo4bo2bo15b3o3b3o$2bobo3bo2bo14b2o7b2o$3b2o3b3o14b3obo3bob3o $24b2o3b2ob2o3b2o$3b2o3b3o13b3o2b2ob2o2b3o$2bobo3bo2bo13b2o9b2o$3bo4bo 2bo14b4o3b4o$8bo2bo16bo5bo$7bob2o17bo5bo$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 16 HEIGHT 500 ]]

p32 found by Carson Cheng on September 29, 2022 (click above to open LifeViewer) Catagolue: here

x = 47, y = 31, rule = B3/S23 36bo$35bob2o$12b2o20bo3bo$12b2o20bo5bo$6bo24bo2bo5bo$6b2o22bobo7bo$5b 2obo3b2o17b2o2b4o$4bo2b3o2bob2o$3bobobo5b3o15b2o2b4o$2bobobo23bobo7bo$ 3o2bo25bo2bo5bo$bob2o6bo8b3o11bo5bo$2b2o6bobo7bobo11bo3bo$3bo7bo7bo2bo 12bob2o$19b2o15bo2$10bo15b2o$8b2obo12bo2bo7bo7bo$8bo3bo11bobo7bobo6b2o $6bo5bo11b3o8bo6b2obo$6bo5bo2bo25bo2b3o$6bo7bobo23bobobo$8b4o2b2o15b3o 5bobobo$31b2obo2b3o2bo$8b4o2b2o17b2o3bob2o$6bo7bobo22b2o$6bo5bo2bo24bo $6bo5bo20b2o$8bo3bo20b2o$8b2obo$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 16 HEIGHT 500 ]]

p32 found by Caleb R. Hilton on December 18, 2024 (click above to open LifeViewer) Catagolue: here

x = 48, y = 48, rule = B3/S23 21bo2$19b3obo$18bob2o$18b2obo$16bob3o2$18bo2$23bo$22bobo$13b2o2b2o4bo$ 13b2ob2obo$17bo2bo$9bo8b2o$8bobo$3o6bo$3o7bo$3o6bobo$3b3o6bo$3b3o3bobo 9b3o$3b3o4bo10bobo$20bo2bo12b2o$20b2o14b2o$10b2o14b2o$10b2o12bo2bo$24b obo10bo4b3o$24b3o9bobo3b3o$35bo6b3o$36bobo6b3o$37bo7b3o$38bo6b3o$37bob o$28b2o8bo$27bo2bo$28bob2ob2o$24bo4b2o2b2o$23bobo$24bo2$29bo2$27b3obo$ 26bob2o$26b2obo$24bob3o2$26bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 16 HEIGHT 500 ]]

p32 found by Caleb R. Hilton on July 16, 2025 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 51, y = 22, rule = B3/S23 10b2o$9b3o26bo3bo3bo3bo$8bobo2bo2b2o20bo2bobobobo2bo$8b2o2b2o2b2o24b2o b2o$12b2o$39bo2b2ob2o2bo$38bobo7bobo$20b2o17b2ob2ob2ob2o$18b2obo17b2o 2bobo2b2o$18bo22bobobobo$18b3o21bo3bo$4bo3bo21b3o$3bobobobo22bo$b2o2b obo2b2o17bob2o$b2ob2ob2ob2o17b2o$obo7bobo$bo2b2ob2o2bo$37b2o$4b2ob2o24b 2o2b2o2b2o$o2bobobobo2bo20b2o2bo2bobo$o3bo3bo3bo26b3o$39b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 16 HEIGHT 500 ]]

p32 found by David Raucci on June 10, 2026 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p36

x = 48, y = 45, rule = B3/S23 17b3o$17b4o$15b2o4bo$16b2obobo$13bo7bo$13b2o2b4ob3o$11b2obobo4bo3bo$ 11b2o3bob2obobob2o$11b2obobob2obo3b2o$12bo3bo4bobob2o$13b3ob4o2b2o$16b o7bo$16bobob2o$16bo4b2o$4bobobobo6b4o$3bob2ob2obo6b3o16bobobobo$b3o7b 3o22bob2ob2obo$o4b2ob2o4bo19b3o7b3o$b4obobob4o19bo4b2ob2o4bo$bo11bo6b 2o12b4obobob4o$4b2o3b2o7bo2bo12bo11bo$2ob2o5b2ob2o3b3o16b2o3b2o$2ob2o 5b2ob2o4bo8bo4b2ob2o5b2ob2o$4b2o3b2o16b3o3b2ob2o5b2ob2o$bo11bo12bo2bo 7b2o3b2o$b4obobob4o12b2o6bo11bo$o4b2ob2o4bo19b4obobob4o$b3o7b3o19bo4b 2ob2o4bo$3bob2ob2obo22b3o7b3o$4bobobobo16b3o6bob2ob2obo$27b4o6bobobobo $25b2o4bo$26b2obobo$23bo7bo$23b2o2b4ob3o$21b2obobo4bo3bo$21b2o3bob2obo bob2o$21b2obobob2obo3b2o$22bo3bo4bobob2o$23b3ob4o2b2o$26bo7bo$26bobob 2o$26bo4b2o$27b4o$28b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 18 HEIGHT 500 ]]

p36 found by David Raucci on June 29, 2022 (click above to open LifeViewer) Catagolue: here

p40

x = 35, y = 15, rule = B3/S23 18b2o7bo2b2o$17bobo6bobo2bo$6b2o8b2o8bobobo$5bo2bo8b2o6b2obob2o$o2bo2b obo14bo3b2o3bo$5obob2o16b2o2b2obo$6bo3bo11bo3bobo2bobo$2b2obo4bo15b2o 2b3o$bo3b2o3bo12bo3b2o$bobobo4bo14b2obob5o$2bo3bo3bo15bobo2bo2bo$3b2ob ob2o16bo2bo$4bobobo18b2o$3bo2bobo7b2o$3b2o2bo8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 20 HEIGHT 500 ]]

p40 found by Mitchell Riley on August 6, 2022 in dimer form and monomerised by cvojan on October 2, 2022 (click above to open LifeViewer) Catagolue: here

x = 41, y = 34, rule = B3/S23 4b2o$4b2o$6b2o$2b4o2bo$bo3bo3bo$o2bo$b6o$8bo$3bobo3bo$b3o4bo$o4bobo$3o b3o17b2o7b2o$3bo2bo5bo10bobo6bo2bo$2o2b3o5bo9b2o8bobo2bo2bo$2obo2bo4b 2o10b2o6b2obob5o$3bob2o22bo3b2o$3bobo3b3o20b2o2b3o$2obobo3b3o15bo4bobo 2bobo$bobob2o20b2o3b2o2b2obo$bobo2bo4b2o8bo5b2o4b2o3bo$2o2b3o5bo7b2o9b 2obob2o$3bo2bo5bo7bo11bobobo$3ob3o14bo10bobo2bo$o4bobo25bo2b2o$b3o4bo$ 3bobo3bo$8bo$b6o$o2bo$bo3bo3bo$2b4o2bo$6b2o$4b2o$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 20 HEIGHT 500 ]]

p40 found by Mitchell Riley on November 2, 2022 (click above to open LifeViewer) Catagolue: here

x = 52, y = 40, rule = B3/S23 17b2o$18bo$17bo12b2o$4b2o11b2o5bo5bo15b2o$4bo15b2obobo5bo15bo$15b5obob obo4b2o$2b7o5bo4bo3bobob2o14b7o$bo3bob2o6b3o2bo2bobobob5o9b2obo3bo$o2b o3b2o8bobobobobo3bo4bo8b2o3bo2bo$b7o10b5o2bo2bo2b3o10b7o$8bo10b3o3bobo bobo11bo$3b6o17b5o12b6o$b3obob2o18b3o13b2obob3o$o4bo40bo4bo$4ob2o21bo 16b2ob4o$6bo3b3o15bo10b3o3bo$2obobo3b5o24b5o3bobob2o$2obo2bo2b2o2bo9b 2o13bo2b2o2bo2bobo$3bob2o3bob2o7b2obo13b2obo3b2obobo$3bobo3b2ob2o7bo6b 3o7b2ob2o3bobob2o$2obobo3b2ob2o7b3o6bo7b2ob2o3bobo$bobob2o3bob2o13bob 2o7b2obo3b2obo$bobo2bo2b2o2bo13b2o9bo2b2o2bo2bob2o$2obobo3b5o24b5o3bob ob2o$6bo3b3o10bo15b3o3bo$4ob2o16bo21b2ob4o$o4bo40bo4bo$b3obob2o13b3o 18b2obob3o$3b6o12b5o17b6o$8bo11bobobobo3b3o10bo$b7o10b3o2bo2bo2b5o10b 7o$o2bo3b2o8bo4bo3bobobobobo8b2o3bo2bo$bo3bob2o9b5obobobo2bo2b3o6b2obo 3bo$2b7o14b2obobo3bo4bo5b7o$20b2o4bobobob5o$4bo15bo5bobob2o15bo$4b2o 15bo5bo5b2o11b2o$20b2o12bo$33bo$33b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 20 HEIGHT 500 ]]

p40 found by Carson Cheng on November 21, 2022 (click above to open LifeViewer) Catagolue: here

x = 33, y = 29, rule = B3/S23 7bo17bo$3b2o2b2ob3o7b3ob2o2b2o$3b2o4b4o7b4o4b2o$7b2o15b2o4$12b3o3b3o$ 12bobo3bobo$12bo2bobo2bo$14b2ob2o2$10bo11bo$12bobo3bobo$15bobo$3b3o6b 2obobob2o6b3o$3b3o7b2o3b2o7b3o$3b3o7bo5bo7b3o$3o27b3o$3o27b3o$3o6b2o11b 2o6b3o$7b3ob2ob2ob2ob2ob3o$6bo8bobo8bo$7b5obobobobob5o$12b2obobob2o$9b 2o5bo5b2o$9bo13bo$10bo11bo$9b2o11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 20 HEIGHT 500 ]]

p40 found by Caleb R. Hilton on Jan 1, 2025. Also a pre-pulsar hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p42

x = 48, y = 28, rule = B3/S23 21b2o2b2o$20bobo2bobo$21bo4bo4$2b2ob2o34b2ob2o$3bobo9b3o12b3o9bobo$3b o11bobo12bobo11bo$2obo2bo7bo2bo12bo2bo7bo2bob2o$bobob3o6b2o16b2o6b3ob obo$bob2o3bo30bo3b2obo$2bo3b2o32b2o3bo$3b3o4b2o24b2o4b3o$5bo4b2o24b2o 4bo$20b8o$10bo7b3ob4ob3o7bo$9b4o4bo12bo4b4o$5b2o5bo4bob2o2b7o5bo5b2o$ 5bo2bob3o5b2o15b3obo2bo$7b2obo10b5obo9bob2o$10bo7b3o5bobo8bo$10bo2bo3b o3b2o3bobo5bo2bo$11b2obo3b2obobob2ob2o3bob2o$14bo4bo2bo10bo$14b2o3bob o10b2o$18b2obobo$22b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 21 HEIGHT 500 ]]

p42 based on a partial by Carson Cheng, completed by iNoMed, and reduced by JP21. (click above to open LifeViewer) Catagolue: here

x = 65, y = 58, rule = B3/S23 19b2o31b2o$13b2o3bo2bo29bo2bo3b2o$14bo2bob2obo27bob2obo2bo$13bo3bobo2b o27bo2bobo3bo$13b4obo2bob2o23b2obo2bob4o$11b2o3bobob2o3bo2b2o13bo5bob 2obo5b2o$10bo2bob2obo4bob4o13bobo3bo3bobo2b3o2bo$9bob2o4b2ob2o3b2o16b o3bob2o3b2o4b2obo$9bobo4bo6b2o2b3o11bobo2b2o4b2obo7bo$8b2ob2o2b2o3bo5b 2o4bo8bo3bo3bo4b2ob5ob2o$9bobo3bo2bo4bobo2b3obo8b5obo4bo4bobobobo$8bo 2bobobob2ob4obo5bo15bob4ob2obobobo2bo$8b2o2b2ob2o2bo4bob4o13b4obo4bo2b 2ob2o2b2o$18bo2b2obo3bob2obo10bo3bob2o2bo$19b2obobo5bo2bo3bo3b2o5bobo b2o$23bo5b2obo3b2o2b2o7bo$30bobo4bo2bo$31b2obobo3bob2o$31bob2o3b3o$23b o6b2o3b3ob2ob2o$23b3o3bo8bo2b2o$26bo3bo4b2o$25b2o4b5obo4$30b3o$30bobo $29bo2bo$29b2o2$36b3o$36bobo$36b2o2$23b5obo8b2o$22bo4b2o9bo$21bo8bo2b 2o4b3o$22b2o3b3ob2ob2o5bo$23bob2o3b3o$23b2obobo3bob2o$22bobo4bo2bo$15b o5b2obo3b2o2b2o7bo$11b2obobo5bo2bo3bo3b2o5bobob2o$10bo2b2obo3bob2obo10b o3bob2o2bo$2o2b2ob2o2bo4bob4o13b4obo4bo2b2ob2o2b2o$o2bobobob2ob4obo5b o15bob4ob2obobobo2bo$bobo3bo2bo4bobo2b3obo8b5obo4bo4bobobobo$2ob2o2b2o 3bo5b2o4bo8bo3bo3bo4b2ob5ob2o$bobo4bo6b2o2b3o11bobo2b2o4b2obo7bo$bob2o 4b2ob2o3b2o16bo3bob2o3b2o4b2obo$2bo2bob2obo4bob4o13bobo3bo3bobo2b3o2b o$3b2o3bobob2o3bo2b2o13bo5bob2obo5b2o$5b4obo2bob2o23b2obo2bob4o$5bo3b obo2bo27bo2bobo3bo$6bo2bob2obo27bob2obo2bo$5b2o3bo2bo29bo2bo3b2o$11b2o 31b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 21 HEIGHT 500 ]]

p42 shuttle found by David Raucci on September 5, 2026. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p44

x = 45, y = 45, rule = B3/S23 20b2o10b2o$20bo12bo$22bo8bo$18b5o2bo2bo2b5o$17bo7b4o7bo$18b6o6b6o$23b 8o$19b2obo2bo2bo2bob2o$19bo2bo8bo2bo2$22bo8bo$20b2o10b2o$22bo8bo4bobo$ 22b2o6b2o3bo$24b6o6bo2bo$24b6o6bobobo$25b4o8bo2bo$4bo33b2o$3bobo15b2o$ 3bobob2o13bo$2obobobo3bo10bobo$o2bobo5bo6bo4b2o$2b2obob2obob2o4b3o11b 3o$5b2o6bo7bo9bo3bo$6bo7b2o4b2o9b2ob2o5bob2o$3b2ob2o6b3o24b2obo$4bobo 7b3o$4bobo7b3o$3b2ob2o6b3o$6bo7b2o$5b2o6bo$2b2obob2obob2o9b2o9b2o$o2bo bo5bo10bobo9bo$2obobobo3bo10bo12b3o$3bobob2o13bobo6b2o4bo$3bobo7bo9b2o 6bobo$4bo7bob2o17bo$16bo16b2o$12bo2bobo$14bo2bo$15b2o$24b2o$25bo$24bo$ 24b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 22 HEIGHT 500 STARTFROM 32 ]]

p44, found by Period1GliderGun on February 2, 2025. Also a pi-heptomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p45

x = 45, y = 29, rule = B3/S23 11b2o19b2o$12bo19bo$12bobo15bobo$13b2o15b2o5$19bo5bo$18b3o3b3o$18bo2bo bo2bo$20b2ob2o$2b6o29b6o$bo6bo27bo6bo$o8bo25bo8bo$bo6bo27bo6bo$2b6o29b 6o$20b2ob2o$18bo2bobo2bo$18b3o3b3o$19bo5bo5$13b2o15b2o$12bobo15bobo$ 12bo19bo$11b2o19b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 23 HEIGHT 500 ]]

p45 found by Mitchell Riley using symmetric CatForce and noticed by iNoMed on October 21, 2022 (click above to open LifeViewer) Catagolue: here

x = 35, y = 67, rule = B3/S23 16b2o$16bobo$17bo4$12bo$12bo$11bobo6bo$12bo7b2o4b2o$12bo8b2o3b2o$12bo 7b2o$12bo7bo$11bobo$12bo$12bo12$14bo$14bo$2o$bo$bobo23b2o$2b2o3b3o15b o2bo$7bobo15bobo$6bo2bo15b3o3b2o$6b2o23bobo$33bo$33b2o$20bo$20bo12$22b o$22bo$21bobo$14bo7bo$13b2o7bo$7b2o3b2o8bo$7b2o4b2o7bo$14bo6bobo$22bo $22bo4$17bo$16bobo$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 23 HEIGHT 500 ]]

p45, reduced by Entity Valkyrie on September 4, 2023. Also a pi-heptomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p48

x = 51, y = 28, rule = B3/S23 8bobo29bobo$11bo27bo$7bo4bo2b2o17b2o2bo4bo$7b2obo2bob2o17b2obo2bob2o$ 11b2o25b2o8$18b3o9b3o$18bobo9bobo$17bo2bo9bo2bo$17b2o13b2o3$5bo3bo31b o3bo$4bobobobo29bobobobo$3bo2bobo2bo27bo2bobo2bo$2b2ob2ob2ob2o25b2ob2o b2ob2o$bo3bo3bo3bo23bo3bo3bo3bo$o2bob2ob2obo2bo21bo2bob2ob2obo2bo$3bo 7bo27bo7bo$5b2ob2o31b2ob2o$o5bobo5bo21bo5bobo5bo$b2ob2o3b2ob2o23b2ob2o 3b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 24 HEIGHT 500 ]]

p48, found by Caleb R. Hilton on January 31, 2025. Also has a trans version. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 37, y = 32, rule = B3/S23 22b2o$22bo$21b2o2b3o$21bo3bob3o$21b2obo4bo$23bobo$11bo7bo4bob2o$11b3o 5b3obo3bo$3bo10bo6b3o2b2o$2b2o9b2o11bo$bob2o20b2o$3o2bo$2bobobo$3bobo bo7b3o$4bo2b3o5bobo12bo$5b2obo5bo2bo11b2o$6b2o6b2o12bob2o$6bo20b3o2bo $29bobobo$30bobobo$31bo2b3o$10b2o20b2obo$10bo11b2o9b2o$9b2o2b3o6bo10b o$9bo3bob3o5b3o$9b2obo4bo7bo$11bobo$7bo4bob2o$7b3obo3bo$9b3o2b2o$14bo $13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 GPS 24 HEIGHT 500 ]]

p48, found by Caleb R. Hilton on August 2, 2025. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p49

x = 49, y = 43, rule = B3/S23 22bo2bo$26bo$21bo5bo$19b3obobob2o$18bo3b2o3bo$18bobobobo2bo2$19bo2bobo bobo$19bo3b2o3bo$18b2obobob3o$19bo5bo$20bo$21bo2bo15b2o$7b2o29b3o6b2o$ 2o6b3o26bo4bo5bo$o5bo4bo26b4obob3o$b3obob4o32bobo$3bobo22bo9b3o2b2o$4b 2o2b3o16b3o8b3o2b2o$4b2o2b3o16bo2bo7b3o3bobo$2bobo3b3o18b2o7b3ob2obobo $bobob2ob3o27b3ob2obobo$bobob2ob3o7b2o18b3o3bobo$2bobo3b3o7bo2bo16b3o 2b2o$4b2o2b3o8b3o16b3o2b2o$4b2o2b3o9bo22bobo$3bobo32b4obob3o$b3obob4o 26bo4bo5bo$o5bo4bo26b3o6b2o$2o6b3o29b2o$7b2o15bo2bo$28bo$23bo5bo$21b3o bobob2o$20bo3b2o3bo$20bobobobo2bo2$21bo2bobobobo$21bo3b2o3bo$20b2obobo b3o$21bo5bo$22bo$23bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 25 HEIGHT 500 ]]

p49 found on November 21, 2022 (click above to open LifeViewer) Catagolue: here

p52

x = 40, y = 35, rule = B3/S23 23b2o4b2o$23b2o4bobo$16b2o13bo$5b2o8bo2bobo5b2o2b2ob2o$6bo8b3o13bob2o$ 6bobo9b2o6b4obo$7b2o2b2o4bo2b6o3bobo$11b2o4b2o11bo2$11bo$5b2obobobo$5b ob2obo2bo19bo$11b2o20bo4bo$22b2o4bo8bobo$21bobo4b2o8b2o$21bo6b2o$10b2o 9b2o5b3o$9bobo16bobo$9b3o5b2o9b2o$10b2o6bo$2o8b2o4bobo$obo8bo4b2o$bo4b o20b2o$6bo19bo2bob2obo$27bobobob2o$28bo2$9bo11b2o4b2o$8bobo3b6o2bo4b2o 2b2o$8bob4o6b2o9bobo$5b2obo13b3o8bo$5b2ob2o2b2o5bobo2bo8b2o$8bo13b2o$ 8bobo4b2o$9b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 26 HEIGHT 500 ]]

p52 found by Carson Cheng on August 26, 2022, reduced by Luka Okanishi the next day (click above to open LifeViewer) Catagolue: here

p54

x = 34, y = 43, rule = B3/S23 15b2o$11b2obobo$10bobobo$9bo2bo2bo$10b3obobob2ob2o$14b2o3bobo2bo$10b4o 5bobob2o$9bo4b5obo2bo$8bo2b2o10bo$8b3ob2o2b7o2$o9b4ob4ob3o$3o5b3o2b8o 2bo9bo$3bo3bo15b3o5b3o$2b2o3b2o17bo3bo$25b2o3b2o$5bo$5bo22bo$4bobo21bo $5bo21bobo$5bo10b2o10bo$5bo8bo2bo10bo$5bo8b3o11bo$4bobo8bo12bo$5bo21bo bo$5bo22bo$28bo$2b2o3b2o7b2o$3bo3bo6bo4bo5b2o3b2o$3o5b3o15bo3bo$o9bo2b o6bo2b3o5b3o$11b3obob2ob4o9bo$15bo3bo$11b5o2b2obob3o$10bo5bo2bob2o2bo$ 10bo2bob5o4bo$9b2obobo5b4o$9bo2bobo3b2o$11b2ob2obobob3o$18bo2bo2bo$19b obobo$17bobob2o$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 27 HEIGHT 500 ]]

p54 found by David Raucci on March 8, 2023, reduced by Entity Valkyrie the same day (click above to open LifeViewer) Catagolue: here

x = 38, y = 35, rule = B3/S23 21bo$21b3o$24bo$23b2o2$17bo8b2o$17b3o5bobo5b4o$20bo4b2o5bo4bo$19b2o10b obo3bo$30bobo3bo$12b2o16bo$12b2o16bo$30bo2bo$21b3o7b2o$21bo$21b2obo$ 23b2o2$13b2o$13bob2o$16bo$5b2o7b3o$4bo2bo$7bo16b2o$7bo16b2o$bo3bobo$o 3bobo10b2o$o4bo5b2o4bo$b4o5bobo5b3o$10b2o8bo2$13b2o$13bo$14b3o$16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 27 HEIGHT 500 ]]

p54 found by iNoMed based on a partial result by Carson Cheng. Also a pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 36, y = 27, rule = B3/S23 10bo$5bo4b3o$5b3o5bo$8bo3b2o$7b2o2$15b2o7bo$13b2obo5b2o$13bo10b2o$13b 3o7bo$34b2o$34bo$32bobo$2b2o28b2o$bobo$bo$2o$12bo7b3o$10b2o10bo$12b2o 5bob2o$11bo7b2o2$27b2o$22b2o3bo$22bo5b3o$23b3o4bo$25bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 27 HEIGHT 500 ]]

p54 found by Mitchell Riley on August 4, 2023. Also a pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 33, y = 30, rule = B3/S23 10bo$9bobo$3b2o4bo2bo17b2o$4bo2b2obobo17b2o$4bobobobobob2o$b2obobob3o bobo2bo13bo$bo2bob3o3bo3b2o12bobo$3bob2o4bobo11b2o2bo2bo$4bo7bo12b2ob o$29b2o$8b2o$7bo2bo$8bo$12bo2bo$3b2o4bo2bo6b2o8b2o$3b2o10bo3bob2o6b2o $10b4o8bo$10bo9b3o2$5b2o$4b4o$3bo2bobo12bo7bo$2bobo2b2o11bob2o4bobo$b obo12b2o3bob3o3bo2bo$2o14bo2bobobob3obob2o$3o15b2obobobobobo$bobo17bo bob2o2bo$2b2o17bo2bo4b2o$22bobo$23bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 27 HEIGHT 500 ]]

p54 shuttle found by David Raucci on October 1, 2026, and reduced multiple times (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p55

x = 31, y = 36, rule = B3/S23 19bo$19bo3b2o$19bo2bobo$21bobo$4bo15b3o$4b3o10bo2bo$7bo8bobob3o$6b2o8b 2o4bo$17b2o2b2o$17b3o$18b2o$9bo12bo$8b3o10bobo$7bo2bo11bo$2b2o3b2o$bob o$bo$2o$29b2o$29bo$27bobo$22b2o3b2o$8bo11bo2bo$7bobo10b3o$8bo12bo$11b 2o$11b3o$8b2o2b2o$8bo4b2o8b2o$8b3obobo8bo$10bo2bo10b3o$8b3o15bo$7bobo$ 6bobo2bo$6b2o3bo$11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 28 HEIGHT 500 ]]

p55 found by Carson Cheng on July 29, 2023 (click above to open LifeViewer) Catagolue: here

p56

x = 65, y = 41, rule = B3/S23 22b2o17b2o$21bo2bo15bo2bo$20bobobo15bobobo$20bo2bo17bo2bo$19bo25bo$20b obo19bobo2$b2o4b2ob2o41b2ob2o4b2o$2bo4bob2obo39bob2obo4bo$2bob2obo4bo 39bo4bob2obo$2o2bobob4ob2o35b2ob4obobo2b2o$bobo2bobo4bobo8b2o13b2o8bob o4bobo2bobo$o2b4obo2b2o2bo8bo2bo9bo2bo8bo2b2o2bob4o2bo$b2o3bobo4bob2o 8b3o9b3o8b2obo4bobo3b2o$3b2o3bo2bob2o2bo29bo2b2obo2bo3b2o$3bo5bo4bob3o 27b3obo4bo5bo$4bo5b4o3bo29bo3b4o5bo$3b2o8bob2o31b2obo8b2o$10b2obobo33b obob2o$10b2obobo33bobob2o$13bob2o31b2obo$10b2obobo33bobob2o$10b2obobo 33bobob2o$3b2o8bob2o31b2obo8b2o$4bo5b4o3bo29bo3b4o5bo$3bo5bo4bob3o27b 3obo4bo5bo$3b2o3bo2bob2o2bo29bo2b2obo2bo3b2o$b2o3bobo4bob2o8b3o9b3o8b 2obo4bobo3b2o$o2b4obo2b2o2bo8bo2bo9bo2bo8bo2b2o2bob4o2bo$bobo2bobo4bob o8b2o13b2o8bobo4bobo2bobo$2o2bobob4ob2o35b2ob4obobo2b2o$2bob2obo4bo39b o4bob2obo$2bo4bob2obo39bob2obo4bo$b2o4b2ob2o41b2ob2o4b2o2$20bobo19bobo $19bo25bo$20bo2bo17bo2bo$20bobobo15bobobo$21bo2bo15bo2bo$22b2o17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 28 HEIGHT 500 ]]

p56 found by David Raucci on May 5, 2022 (click above to open LifeViewer) Catagolue: here

x = 45, y = 34, rule = B3/S23 13b2o15b2o$11bo2bo15bo2bo2$11bo2bo15bo2bo$12bo2bo13bo2bo$13bobo13bobo $14bo15bo2$2bobo2bo5b2o15b2o5bo2bobo$2b3obob2o3b2o15b2o3b2obob3o$bo6b o27bo6bo$2bo5b2o25b2o5bo2$b2o5bo27bo5b2o$2bo6bo9bo5bo9bo6bo$b2obob3o9b 3o3b3o9b3obob2o$3bo2bobo9bo2bobo2bo9bobo2bo$20b2ob2o3$6b2o29b2o$2b2ob o2bob2o21b2obo2bob2o$2bo4bo2b2o21b2o2bo4bo$6bo31bo$3bobo33bobo8$18b2o 5b2o$18b2o5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 28 HEIGHT 500 ]]

p56 found by Caleb R. Hilton on January 1, 2025. (click above to open LifeViewer) Catagolue: here

x = 63, y = 60, rule = B3/S23 33bo$32b2o$30b2ob2o$32bo$27b2o3b2o7b2o$16b2o12bob2o6bobo$17bo12b2o8b3o $17bobo8b2o4b2o8b2o$18b2o8b2o4b2o8bobo$21b3o8b2o12bo$21bobo6b2obo12b2o $21b2o7b2o3b2o$31bo10bo3b2o5b2o$29b2ob2o6b3o3b2o5b2o$30b2o7bo$30bo8b2o 2$21bo$20b3o11b3o10b2o3b2o$12b2o4b2o3bob2o9bo9b2o5b2o$12b2o4bo2b2o2b2o 9bo8bo2bo3bo2bo$18bob2o10bob2o9bobo5bobo$31b2o12b3o5b3o3$18bob2o24b2o 5b2o$10bob2o4bo2b2o2b2o19b2o5b2o$8b3ob2o4b2o3bob2o$7bo12b3o34bo$7b2o12b o33b3o$5b3o46bo$4bobo5b2o31b2o7b2o$4bo2bo5bo31bo6b3o$5b2o6bobo6bo20bo bo5bobo$14b2o6bo20b2o6bo2bo$18b3o31b2o$19b4o$21b3o$7b2o16bo$2b2o2b2o2b o6bo3b3obo$o4b2o2b2o5b2o3bo32b2o$o5bo2bo3b2o3bo16bo13b2o2b2o2bo$b2o3b o2bo5bo9bo9b2o10bo4b2o2b2o$5b2o2b2o4bo9bo9b2o10bo5bo2bo3b2o$5bo2b2o2b 2o26b2o6b2o3bo2bo5bo$7b2o31bobo9b2o2b2o4bo$39bo2bo9bo2b2o2b2o$40b2o12b 2o$40bo2$9b2o$8bo2bo$9bobo44b2o$8b3o44bo2bo$7b2o47bobo$8bo46b3o$5b3o46b 2o$5bo49bo$52b3o$52bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 28 HEIGHT 500 STARTFROM 34 ]]

p56 found by Caleb R. Hilton and reduced by Period1GliderGun on December 23rd, 2024. Also an R-pentomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 41, y = 68, rule = B3/S23 3b2o14b2o3b2o$3bo2bo12bobobo2bo$4b2obo5bo7bob2obo$6bo3bo2b2o5b2obo2b2o $4b2o4b2o12b2o$4bo5b5o10bo$2bobo9b2o8bo$2b2o6b2o3b2o8b3o$16bobo8bo$16b 2o2$10b2o$o8bobo$3o8b2o3b2o6b2o$3bo8b2o9bobo$2bo10b5o5bo$2b2o12b2o4b2o $2o2bob2o5b2o2bo3bo$bob2obo7bo5bob2o$bo2bobobo12bo2bo$2b2o3b2o14b2o$9b 2o$9bo$6b2obo$6b2obobo$10b2o$15b3o$14bo2bo18b2o$14b2o20bo$20b2o12bobo $19bo2bob2o8b2o$19b2o3b3o$20bo$17b7ob3o$13b3ob7o$20bo$14b3o3b2o$5b2o8b 2obo2bo$4bobo12b2o$4bo20b2o$3b2o18bo2bo$23b3o$29b2o$29bobob2o$31bob2o $31bo$30b2o$16b2o14b2o3b2o$16bo2bo12bobobo2bo$17b2obo5bo7bob2obo$19bo 3bo2b2o5b2obo2b2o$17b2o4b2o12b2o$17bo5b5o10bo$15bobo9b2o8bo$15b2o6b2o 3b2o8b3o$29bobo8bo$29b2o2$23b2o$13bo8bobo$13b3o8b2o3b2o6b2o$16bo8b2o9b obo$15bo10b5o5bo$15b2o12b2o4b2o$13b2o2bob2o5b2o2bo3bo$14bob2obo7bo5bo b2o$14bo2bobobo12bo2bo$15b2o3b2o14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 28 HEIGHT 500 STARTFROM 34 ]]

p56 found by Caleb R. Hilton and reduced by Chris857 and WhiteHawk on April 25, 2026. Also a wing hassler. (click above to open LifeViewer) Catagolue: here

p60

x = 39, y = 29, rule = B3/S23 29bo6bo$28b2o6b2o$27b3o6b3o$28b2o6b2o$5b4o20bo6bo$4b6o$3b8o$2b2o6b2o7b 2o$3b8o7b2o$4b6o9bobo$5b4o11b2o8$17b2o11b4o$17bobo9b6o$19b2o7b8o$18b2o 7b2o6b2o$28b8o$29b6o$2bo6bo20b4o$b2o6b2o$3o6b3o$b2o6b2o$2bo6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 30 HEIGHT 500 ]]

p60 obo! sparker found by Carson Cheng on October 2, 2022 (click above to open LifeViewer) Catagolue: here

x = 27, y = 24, rule = B3/S23 13bo2bo4bo2bo$11b3o2b6o2b3o$13bo2bo4bo2bo8$2o3bo2bo3b2o$5o4b5o7b2o$2o 3bo2bo3b2o5bo2bo$19bobo$19b3o7$3b2o3bo2bo3b2o$3b5o4b5o$3b2o3bo2bo3b2o ! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 30 HEIGHT 500 ]]

p60, found by Caleb R. Hilton on March 3, 2026 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p62

x = 30, y = 27, rule = B3/S23 8bo7bo$8b2o4b3o$8b2o3bo$9bo3b2o4$11bo$10b3o12bo$9bo2bo11bobo$9b2o13bob o$23b2ob3o$3bob2o22bo$b3ob2o16b2ob3o$o22b2obo$b3ob2o$3bobo13b2o$3bobo 11bo2bo$4bo12b3o$18bo4$15b2o3bo$16bo3b2o$13b3o4b2o$13bo7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 GPS 31 HEIGHT 500 ]]

p62 found by Mitchell Riley on April 5, 2023. It is also a teardrop hassler (click above to open LifeViewer) Catagolue: here

x = 44, y = 84, rule = B3/S23 18bo$18b3o$21bo$20b2o2$8b2o$9bo$8bo$8b2o5bo$15b2o2bo$6bo4bo5bo2bo$5bo bo2bo2b2o5bo$5bo2bobo5b2o2bo$6b2o2bo2bo5bo$2b2o7bo2b2o9bo$bobo11bo9bo $bo25b3o$2o23bo2b2o$16bo8bo$12b2o2bo23b2o$12b3o25bo$16bo9bo11bobo$16b o9b2o2bo7b2o$22bo5bo2bo2b2o$21bo2b2o5bobo2bo$21bo5b2o2bo2bobo$21bo2bo 5bo4bo$22bo2b2o$26bo5b2o$33bo$33bobo$34b2o2$30b2o$30bo$28bobo$28b2o$14b 2o$14b2o6$22b2o$22bobo3b2o$24bo3b2o$14b2o6bobo$13bobo6b2o$13bo$12b2o2$ 8b2o$8bobo$10bo13b3o$10b2o12bo2bo$23bobo2bo$8bo18bo$7bobo12b5o$7bo2bo 6b2o3b3ob2o$8b2o6bo2bo$4b2o11bobo2b2ob2o$3bobo12bo3bo2b2o$3bo19b2o$2b 2o2$42b2o$21b2o19bo$19b2o2bo3bo12bobo$19b2ob2o2bobo11b2o$26bo2bo6b2o$ 18b2ob3o3b2o6bo2bo$19b5o12bobo$18bo18bo$17bo2bobo$18bo2bo12b2o$19b3o13b o$34bo$34b2o2$22b2o$22bo$23b3o$25bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 31 HEIGHT 500 STARTFROM 19 ]]

p62 shuttle found by Period1GliderGun on May 9, 2025. Also a pi-heptomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p63

x = 47, y = 34, rule = B3/S23 6b2o16b2o$7bo16bo$7bobo12bobo$8b2o12b2o$13bo4bo$11b2ob4ob2o9bo$13bo4bo 11b3o$8b2o12b2o9bo$7bobo12bobo7b2o$7bo16bo$6b2o16b2o$2o$bo14b2o$bobo 10bo2bo$2b2o10b3o$15bo3$31bo$30b3o10b2o$29bo2bo10bobo$29b2o14bo$45b2o$ 21b2o16b2o$22bo16bo$13b2o7bobo12bobo$13bo9b2o12b2o$14b3o11bo4bo$16bo9b 2ob4ob2o$28bo4bo$23b2o12b2o$22bobo12bobo$22bo16bo$21b2o16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 32 HEIGHT 500 ]]

p63 found by Luke Kiernan on September 7, 2022 (click above to open LifeViewer) Catagolue: here

x = 62, y = 29, rule = B3/S23 23bo$23b3o$26bo$25b2o10b2o$37bo$35bobo$27b3o5b2o$26bo3bo$25bo4bo$18bo 6bo2b2o13bo$18bo7b2o15bo$18bo24bo$18b2o22b2o$21bo18bo$17bo4bo16bo4bo$ 22bo16bo$18b3o20b3o3$20bo20bo$4b2o4b2o7bobo3bo2bo4bo2bo3bobo7b2o4b2o$ 4b3o3b2o6bo3b4o2b6o2b4o3bo6b2o3b3o$3bo3bo2b2o7bobo3bo2bo4bo2bo3bobo7b 2o2bo3bo$ob4o3b3o8bo20bo8b3o3b4obo$o10bo38bo10bo$3o3b4obo38bob4o3b3o$ 2o2bo3bo44bo3bo2b2o$2o3b3o46b3o3b2o$2o4b2o46b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 32 HEIGHT 500 ]]

p63 found by Caleb R. Hilton on January 30, 2025 and reduced by LWSSONHWSSONLWSS and INoMed. (click above to open LifeViewer) Catagolue: here

p68

x = 23, y = 24, rule = B3/S23 12b2o$12b2o2$10b4o$10bo2bo4$bo$b3o12bo$4bo12bo$3b2o9bo2bo$14b3o4$2b2o$ bobo$bo$2o$19b2o$19bo$20b3o$22bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 16 GPS 34 HEIGHT 500 ]]

p68 century hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 79, y = 84, rule = B3/S23 21bo11bo21bo11bo$21b3o7b3o21b3o7b3o$24bo5bo27bo5bo$23b2o5b2o6bo11bo6b 2o5b2o$36b3o11b3o$35bo17bo$35b2o15b2o2$27bo33bo$27b2o6bo17bo6b2o$21bo 7bo4bobo4bo5bo4bobo4bo7bo$10b2o9bo5b2o12bo5bo12b2o5bo9b2o$11bo15bo13b 2o3b2o13bo15bo$11bobo27b2o3b2o27bobo$12b2o9bo17b2o3b2o17bo9b2o$22b2o5b o8bob2o5b2obo8bo5b2o$21bo7bo29bo7bo$22b2o10b2o17b2o10b2o$23bo10b2o17b 2o10bo2$14b2o57b2o$15bo22bob2o5b2obo22bo$12b3o26b2o3b2o26b3o$12bo6b2o 5b2o13b2o3b2o13b2o5b2o6bo$20bo5bo14b2o3b2o14bo5bo$17b3o7b3o8b2obo5bob 2o8b3o7b3o$17bo11bo9b3o5b3o9bo11bo$40bo7bo4$54bo$54bo$53bo2bo$51bo$51b o3b2o$49b2o$48b3o3bo$38b3o9bo$21b2o15bobo10b2ob3o$22bo14bo2bo11bobo2b o$22bob2o11b2o13bobob2o$21b2obobo26b2obo$21bo2bobo29bo$22bo3b2o28b2o$ 24b2o2bo7bo$24bob4o6bo$26b3o$22b2o2b2o2$22bo2bo$24bo$24bo4$30bo7bo$7b o11bo9b3o5b3o9bo11bo$7b3o7b3o8b2obo5bob2o8b3o7b3o$10bo5bo14b2o3b2o14b o5bo$2bo6b2o5b2o13b2o3b2o13b2o5b2o6bo$2b3o26b2o3b2o26b3o$5bo22bob2o5b 2obo22bo$4b2o57b2o2$13bo10b2o17b2o10bo$12b2o10b2o17b2o10b2o$11bo7bo29b o7bo$12b2o5bo8bob2o5b2obo8bo5b2o$2b2o9bo17b2o3b2o17bo9b2o$bobo27b2o3b 2o27bobo$bo15bo13b2o3b2o13bo15bo$2o9bo5b2o12bo5bo12b2o5bo9b2o$11bo7bo 4bobo4bo5bo4bobo4bo7bo$17b2o6bo17bo6b2o$17bo33bo2$25b2o15b2o$25bo17bo $26b3o11b3o$13b2o5b2o6bo11bo6b2o5b2o$14bo5bo27bo5bo$11b3o7b3o21b3o7b3o $11bo11bo21bo11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 34 HEIGHT 500 ]]

p68 shuttle, found by Elijah Ken on September 7, 2026, completing a partial by David Raucci. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p70

x = 64, y = 64, rule = B3/S23 39b2o$31bo6bobo3b2o$31b2o4bo2bo3b2o$35bo3bo$35bobo2$35bobo$35bo3bo$31b 2o4bo2bo3b2o$31bo6bobo3b2o$39b2o$25b2o$25b2o6$b2o5b2o$b2o5b2o2$32bo$ 31b3o$3o5b3o20bo2bo$o2bo3bo2bo22b2o$bo7bo41b2o$2bobobobo42b2o2$3b2ob2o $23b2o$22bobo$2bo5bo12b2o17b2o12b2o5b2o$b2o5b2o12b2o17b2o12bo5bo$39bob o$39b2o$56b2ob2o2$11b2o42bobobobo$11b2o41bo7bo$29b2o22bo2bo3bo2bo$29bo 2bo20b3o5b3o$30b3o$31bo2$54b2o5b2o$54b2o5b2o6$37b2o$37b2o$23b2o$18b2o 3bobo6bo$18b2o3bo2bo4b2o$24bo3bo$26bobo2$26bobo$24bo3bo$18b2o3bo2bo4b 2o$18b2o3bobo6bo$23b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 35 HEIGHT 500 ]]

p70 found by David Raucci on April 29, 2021 (click above to open LifeViewer) Catagolue: here

x = 45, y = 21, rule = B3/S23 16b2o9b2o$16b2o9b2o9$16b2o9b2o$17bo9bo$2o11b2ob2o9b2ob2o11b2o$o13bobo 11bobo13bo$2bob2o9bo13bo9b2obo$b2ob2o33b2ob2o2$b2ob2o11b2o7b2o11b2ob2o $2bobo12bo9bo12bobo$2bobo13b3o3b3o13bobo$3bo16bo3bo16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 35 HEIGHT 500 ]]

p70 found by Mitchell Riley on July 10, 2022 (click above to open LifeViewer) Catagolue: here

p72

x = 61, y = 61, rule = B3/S23 46b2o$46b2o3$47b2o$45bob2o$45bo$40b2o3bo$40b2o3bo2bo$46b2o2$26bobo$4b 2o19bo$2obo2bob2o10b2o2bo4bo7bo$2o2bo4bo10b2obo2bob2o5b4o$5bo18b2o9bo 3bo$6bobo26b2o3bo$37b3o$33bo5bo$7b2o11b3o10b2obobo$7b2o24bobo10b2o$11b 2o5b2o16b2o8b2o$10bo6bo2b3o$11bobo8b2o$11b2o6bob2o22b2o$20bo24b2obo$29b 2o17bo$29bobo16bo$31bo13bo2bo$23b2o5b2o14b2o2$13b2o11bobo$13b2o11b2o$ 26b2o2$12b2o37bo$12b2obo26b2o6bob2o$15bo26bobo8b2o$15bo3b2o20bo6bo2b3o $12bo2bo3b2o21b2o5b2o$13b2o23b2o$38b2o11b3o3$23bo13bobo$22b4o10bo18b2o $21bo3bo5b2o2bo4bo10b2obo2bob2o$20bo3b2o5b2obo2bob2o10b2o2bo4bo$21b3o 11b2o19bo$21bo5bo29bobo$22bobob2o$13b2o10bobo$13b2o8b2o3$14b2o$12bob2o $12bo$12bo$12bo2bo$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 36 HEIGHT 500 ]]

p72 found by David Bell in June 1996, reduced by David Raucci on May 26, 2022. (click above to open LifeViewer) Catagolue: here

x = 43, y = 40, rule = B3/S23 16b2o2$14bo3bo$14bo4bo$16bobobo$17bobobo$18bo4bo$19bo3bo2$20b2o18b2o$ 40bobo$37b2obobo$14bo22bobobo$14b3o22bo$17bo20bo2bo$b2o13b2o20bo$obo 35bo3bo$obob2o20b3o9bo3bo$bobobo20bobo9bo$3bo12b2o7bo2bo9bo2bo$bo2bo9b o2bo7b2o12bo$4bo9bobo20bobobo$o3bo9b3o20b2obobo$o3bo35bobo$4bo20b2o13b 2o$bo2bo20bo$3bo22b3o$bobobo22bo$obob2o$obo$b2o18b2o2$19bo3bo$19bo4bo$ 21bobobo$22bobobo$23bo4bo$24bo3bo2$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 36 HEIGHT 500 ]]

p72 found by Carson Cheng on November 29, 2023, reduced by iNoMed the same day. Also a lumps of muck hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 42, y = 38, rule = B3/S23 o2b2o$4obo3bobo$5bo3bo$2b4obo4b2o$2bo8bo$3b3o$5bo3b2o$6b3o$7b2o$7bo17b2o$25b2o2$4b2o$4b2o10b2o$14b2obo$14bo$14b3o5$25b3o$27bo$24bob2o$24b2o 10b2o$36b2o2$15b2o$15b2o17bo$33b2o$33b3o$31b2o3bo$36b3o$30bo8bo$28b2o4bob4o$32bo3bo$30bobo3bob4o$37b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 36 HEIGHT 500 ]]

p72 found by Carson Cheng on November 29, 2023 (after the other p72 in this collection) and reduced by Lucy D'Agostino. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 55, y = 39, rule = B3/S23 51bobo$29b2o19bo$25b2obo2bob2o10b2o2bo4bo$25b2o2bo4bo10b2obo2bob2o$30b o18b2o$31bobo2$34b2o$34b2o10b2o$34bo11b2o$18bo14bobo$18b3o12bob2o4b2o $21bo10bo6bo2b2o$20b2o11b3o4b2o$38bo$26b3o8bo$26bobo$26bo2bo$28b2o5$12b o$13bo$8b3o4b2o16b2o$7bo6bo2b2o14bo$8bob2o4b2o16b3o$8bobo25bo$9bo11b2o $9b2o10b2o$9b2o2$6bobo$5bo18b2o$2o2bo4bo10b2obo2bob2o$2obo2bob2o10b2o 2bo4bo$4b2o19bo$26bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 36 HEIGHT 500 ]]

p72 shuttle found by Caleb R. Hilton on February 20, 2025. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 82, y = 82, rule = B3/S23 44b2o$43bo2bo$46bo$46bo$43b2obo$43b2o2$38b2o$38b2o4b2o$44b2o8$34b2o9b 2ob2o$33bo2bo8b2obo$33b2ob2o6bo3bo$35bobo6bobobob2o3b2o$37b3o3bo4bobo 4b2o$38b2o3bo3b2obo$44b2o3bo$24b2o20b3o5b2obo$20b2o4b4o16bo8bobo$20b2o 2b2ob3o26bo$24bo30b2o$55b2o$55b2o$20bo$20b3o$17bo5bo$17b6obo37b2o$22b obo37bobo$b4o12b2obo3b2o10b3o4b2o16bo2bo$o7b2o7b2o4bo12bobo4bob2o15b2o $o3b2o2b2o9b2o2bo11bo2bo7bo13b3o$bo2b2o15b2o12b2o7b3o12b2o12b2o$59b2o 12b2o3$7b2o12b2o$7b2o12b2o12b3o7b2o12b2o15b2o2bo$19b3o13bo7bo2bo11bo2b 2o9b2o2b2o3bo$18b2o15b2obo4bobo12bo4b2o7b2o7bo$17bo2bo16b2o4b3o10b2o3b ob2o12b4o$17bobo37bobo$18b2o37bob6o$58bo5bo$59b3o$61bo$25b2o$25b2o$25b 2o30bo$25bo26b3ob2o2b2o$24bobo8bo16b4o4b2o$24bob2o5b3o20b2o$32bo3b2o$ 31bob2o3bo3b2o$25b2o4bobo4bo3b3o$25b2o3b2obobobo6bobo$33bo3bo6b2ob2o$ 33bob2o8bo2bo$32b2ob2o9b2o8$36b2o$36b2o4b2o$42b2o2$37b2o$35bob2o$35bo $35bo$35bo2bo$36b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 36 HEIGHT 500 ]]

p72 found by Caleb R. Hilton on June 22, 2025, and reduced by WhiteHawk. Also an R-pentomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p78

x = 72, y = 72, rule = B3/S23 26b3o2$20b2o3bo3bo3b2o$20bobo3bobo3bobo$22bo4bo4bo$22b2o2b3o2b2o2$20b 5o5b5o$19bo15bo$19bo2b3o5b3o2bo$18b2obo5bo5bob2o$17bo3b2o2bo3bo2b2o3bo $17b3o4b7o4b3o$20b5o5b5o$19bo15bo$19b2o2bobobobobo2b2o$24bobobobo$59b 2o$59bobo$56b2obob3o$56bobo5bo3b2o$58bob2o2bo4bo$58bobobobob3o$56bobo 3bobobo$55bo2b2o2bobo$56bo2b2o8bo$41b2o12bo3bo6bobo2bo$27b2o12bo2bo11b o2bobo4b2o3bo$28b2o12b3o10bo3bo6bobo2bo$26bobo6bo7bo12bo2b2o8bo$26b2o 6bobo18bo2b2o2bobo$56bobo3bobobo$58bobobobob3o$58bob2o2bo4bo$11b2o28bo 14bobo5bo3b2o$10bobo17bo11bo13b2obob3o$8b3obob2o13bo11bo17bobo$2b2o3bo 5bobo14bo28b2o$2bo4bo2b2obo$3b3obobobobo$5bobobo3bobo$7bobo2b2o2bo18bo bo6b2o$2bo8b2o2bo12bo7bo6bobo$o2bobo6bo3bo10b3o12b2o$o3b2o4bobo2bo11bo 2bo12b2o$o2bobo6bo3bo12b2o$2bo8b2o2bo$7bobo2b2o2bo$5bobobo3bobo$3b3obo bobobo$2bo4bo2b2obo$2b2o3bo5bobo$8b3obob2o$10bobo$11b2o$41bobobobo$36b 2o2bobobobobo2b2o$36bo15bo$37b5o5b5o$34b3o4b7o4b3o$34bo3b2o2bo3bo2b2o 3bo$35b2obo5bo5bob2o$36bo2b3o5b3o2bo$36bo15bo$37b5o5b5o2$39b2o2b3o2b2o $39bo4bo4bo$37bobo3bobo3bobo$37b2o3bo3bo3b2o2$43b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 39 HEIGHT 500 ]]

p78 found by Mitchell Riley on October 5, 2023 (click above to open LifeViewer) Catagolue: here

p79

x = 50, y = 53, rule = B3/S23 24bo$23bobo$24bo2$22b5o7b2o$21bo4bo7bo2b2o$20bo2bo11b2ob3o$17bo2bob2o 17bo$16bobobo5bo8b2ob3o$17bo2bo4bobo7b2obo$20b2o2bo2bo$25b2o2$20b2o$ 20bobo10bo$21b2o11bo$31bob2o$30bo2bo$31bobo$7b2o$6bo2bob2o$6bob2obobo 31bo$2b2ob2obo4bo14b2ob2o11bobo$3bobo2bob3o15bo3bo11bobo$3bo2b3obo18b 3o11b2obobo$bobo36bo6bobo$obob6o30b6obobo$obo6bo36bobo$bobob2o11b3o18b ob3o2bo$3bobo11bo3bo15b3obo2bobo$3bobo11b2ob2o14bo4bob2ob2o$4bo31bobob 2obo$37b2obo2bo$41b2o$16bobo$16bo2bo$15b2obo$15bo11b2o$16bo10bobo$28b 2o2$23b2o$22bo2bo2b2o$11bob2o7bobo4bo2bo$9b3ob2o8bo5bobobo$8bo17b2obo 2bo$9b3ob2o11bo2bo$11b2o2bo7bo4bo$14b2o7b5o2$25bo$24bobo$25bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 40 HEIGHT 500 STARTFROM 51 ]]

p79 found by iNoMed on September 28, 2023, based on a partial by Mitchell Riley. Also a pi-heptomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p80

x = 46, y = 46, rule = B3/S23 16b2o$16bobo$13b2obo2bo5bo$13bobo2b3o3bobo$15bobo2bo3bobo$15bob2ob2ob 2ob2o$16bo10bo$17b3ob2ob3o$12bo6b2o2b2o$11bobo$11bobo$9b3ob2o$8bo$2b2o 5b3ob2o$2bo8bob2o$3b3o22b2o$3o3bo20bobo4bo$o3b2obo8bo11bo3b3o$bobobobo 7b3o13bo7b2o$2b2o3b2o5bo2bo13b2o5bob3o$3b3o2bo5b2o22bo4bo$5bobo29b2ob 3o$7bo29bo2bo$5bo2bo29bo$3b3ob2o29bobo$2bo4bo22b2o5bo2b3o$3b3obo5b2o 13bo2bo5b2o3b2o$5b2o7bo13b3o7bobobobo$11b3o3bo11bo8bob2o3bo$11bo4bobo 20bo3b3o$16b2o22b3o$31b2obo8bo$31b2ob3o5b2o$37bo$31b2ob3o$32bobo$32bob o$21b2o2b2o6bo$19b3ob2ob3o$18bo10bo$18b2ob2ob2ob2obo$19bobo3bo2bobo$ 19bobo3b3o2bobo$20bo5bo2bob2o$27bobo$28b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 40 HEIGHT 500 ]]

p80 found by Luke Kiernan on September 7, 2022 (click above to open LifeViewer) Catagolue: here

x = 38, y = 40, rule = B3/S23 22b2o$18b2o2bo$17bo2bobo$13b2obobobob2o$13bob2obobobo$18b3o3bo$14b4obo b3obo$13bo11bo$14b3obobob3o$9bo6b2obob2o$9b3o$12bo$11b2o$12b3o$13bobo$ 13bobo$14bo2$25b2o$23bobobo$24bo2bo$17b2o4bo2b2o$18b2o4bo$16bobo6b2o$ 16b2o$31b2o$29b2obo$28bo2bo$28bo2bo4bo$28bo2bo3bobo$29b3o3b2o$3b3o9b3o $b3obo2b2ob2o2bob3o9b3o3b2o$o6bobobobo6bo7bo2bo3bobo$b5obobobobob5o8bo 2bo4bo$6b2obobob2o13bo2bo$3b2o5bo5b2o11b2obo$3bo13bo13b2o$4bo11bo$3b2o 11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 40 HEIGHT 500 ]]

p80 found by Luke Kiernan on October 3, 2022 (click above to open LifeViewer) Catagolue: here

x = 44, y = 39, rule = B3/S23 20bo$19bobo$17b3obo$11b2o3bo4bob2o$11b2o3bobobobobo$17b2obobo7b2o$4b3o 14bobo5bo2bo$7bo14bo6bobo$3bo3bo3bo2b2o14bob2o$2bobo2bo3b5o7b3o5b3o$o 2bobo6b3o7bo3bo5b2o$o3bo16bo5bo$o9bo10bo5bo$b3o5bobo9bo5bo$10bo11bo3bo $23b3o14b3o$43bo$39bo3bo$38bobo2bo$36bo2bobo$36bo3bo$36bo$37b3o5$10bo 3bo$9bobobobo$10b2ob2o$8b3o3b3o$7b2o7b2o$6b3obo3bob3o$5b2o3b2ob2o3b2o$ 5b3o2b2ob2o2b3o$6b2o9b2o$7b4o3b4o$9bo5bo$9bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 40 HEIGHT 500 STARTFROM 15 ]]

p80 found by Caleb R. Hilton on December 23, 2024. Also a honey farm hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p84

x = 94, y = 57, rule = B3/S23 14bo$14b3o$11bo5bo$11b6obo6b2o$16bobo6bobo$11b2o2bo2b2o6b3o$11bo2b2ob o9b2o$15bobo7bobo$16bo3b2o2bobo$20bobo2bo15bo$21b4o16bobo$7bo14b2o16b obo$5bo3bo32bo$5bo3bo$2o14bo5bo$2o3bobobo6b2o4bo16bo$7bobo7bo4bo15bob o$16bobo19bobo$15b4o20bo35bo$14b2ob2o56b3o$14b4o54bo5bo$14bobo11bo43b 6obo6b2o$10bo4bo7bobob3o47bobo6bobo$10bo4b2o6bobo2bobo41b2o2bo2b2o6b3o $10bo5bo13b2o29b2o9bo2b2obo9b2o$23bo4bobo12b2o17bo13bobo7bobo$23bo3b3o 11bo2bo16bo15bo3b2o2bobo$9b2o14b4o12bobo17b2o18bobo2bo$8b4o29b3o6b3o29b 4o$7bo2bobo18b2o17bobo12b4o14b2o$6bobo2b2o3bo15bo16bo2bo11b3o3bo$5bob o7bobo13bo17b2o12bobo4bo$4b2o9bob2o2bo9b2o29b2o13bo5bo$4b3o6b2o2bo2b2o 41bobo2bobo6b2o4bo$5bobo6bobo47b3obobo7bo4bo$6b2o6bob6o43bo11bobo$15b o5bo54b4o$16b3o56b2ob2o$18bo35bo20b4o$53bobo19bobo$53bobo15bo4bo7bobo $54bo16bo4b2o6bobobo3b2o$71bo5bo14b2o$84bo3bo$51bo32bo3bo$51bobo16b2o 14bo$50bobo16b4o$52bo15bo2bobo$67bobo2b2o3bo$66bobo7bobo$65b2o9bob2o2b o$65b3o6b2o2bo2b2o$66bobo6bobo$67b2o6bob6o$76bo5bo$77b3o$79bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 42 HEIGHT 500 ]]

found by David Raucci on September 20, 2023. It is also a traffic light hassler (click above to open LifeViewer) Catagolue: here

p85

x = 65, y = 44, rule = B3/S23 57b2o$57bobo$59bo$59bob2o$57bobobo$25b2o3bo25b3o2bo$25b2o3b3o28bob2o$ 33bo8b2o7b4o2bo3bob2o$32b2o8b2o6bo2bo4bob2o$51bob4obo2bo$50bo2bob2o4b ob2o$35b2o13bo2bob2o4bob2o$33b2obo14bob4obo2bo$33bo16bo2bo4bob2o$33b3o 15b4o2bo3bob2o$61bob2o$56b3o2bo$16b2o39bobobo$16b2o41bob2o$59bo$57bob o$57b2o$6b2o$5bobo$5bo$2b2obo41b2o$3bobobo39b2o$3bo2b3o$2obo$2obo3bo2b 4o15b3o$3b2obo4bo2bo16bo$3bo2bob4obo14bob2o$2obo4b2obo2bo13b2o$2obo4b 2obo2bo$3bo2bob4obo$3b2obo4bo2bo6b2o8b2o$2obo3bo2b4o7b2o8bo$2obo28b3o 3b2o$3bo2b3o25bo3b2o$3bobobo$2b2obo$5bo$5bobo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 43 HEIGHT 500 ]]

p85 found by Period1GliderGun on May 9, 2025. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p86

x = 91, y = 44, rule = B3/S23 40bo$40bobo$39bobo$41bo33bo$74bobo$72b3obo$38bo32bo4bob2o$37bobo31bobo bobobo$37bobo32b2obobo$38bo37bobo$23bo40b2o11bo$22bobo41bo$20b3obo13b 3o11b2o10bo2bo$19bo4bob2o10bobo12bo10bo$19bobobobobo10b3o12bobo9bo$20b 2obobo28b2o6b2o12b3o$24bobo36bo12b2ob2o$12b2o11bo39b2o8bo$14bo50b2o9b 2o$2o10bo2bo51bo8b2o$bo10bo49b2ob2o12bo$bobo9bo50b3o12b2o6b2o$2b2o6b2o 12b3o50bo9bobo$11bo12b2ob2o49bo10bo$13b2o8bo51bo2bo10b2o$13b2o9b2o50bo $15bo8b2o39bo11b2o$10b2ob2o12bo36bobo$12b3o12b2o6b2o28bobob2o$25bo9bob o12b3o10bobobobobo$26bo10bo12bobo10b2obo4bo$23bo2bo10b2o11b3o13bob3o$ 24bo41bobo$13bo11b2o40bo$12bobo37bo$13bobob2o32bobo$11bobobobobo31bobo $11b2obo4bo32bo$14bob3o$14bobo$15bo33bo$49bobo$48bobo$50bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 43 HEIGHT 500 STARTFROM 44 ]]

p86 traffic light hassler found by David Raucci on May 9, 2023, the same day the beehive+clock catalyst was found (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p90

x = 38, y = 21, rule = B3/S23 2bo4bo22bo4bo$2ob4ob2o18b2ob4ob2o$2bo4bo22bo4bo2$15b2o$15bob2o$18bo$16b 3o6$16b3o$18bo$15bob2o$15b2o2$2bo4bo22bo4bo$2ob4ob2o18b2ob4ob2o$2bo4b o22bo4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 45 HEIGHT 500 ]]

Diuresis (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p104

x = 51, y = 51, rule = B3/S23 20b2o7b2o$21bo7bo$19bo11bo$19b2o9b2o$22b2obob2o$17b3ob3o3b3ob3o$16bo2b 2o2bobobo2b2o2bo$16b2o4b3ob3o4b2o2$21bo2bobo2bo$20bo3b3o3bo$19bo2b7o2b o$19b2o9b2o4$6b2o35b2o$5bobo14b2o19bobo$5bo16bo2bo19bo$2b2ob2o4b2o10b 3o12b2o4b2ob2o$o2bo2bo3bobo11bo13bobo3bo2bo2bo$2o3bo3bo31bo3bo3b2o$4b 2obo3bo20b2o5bo3bob2o$4b4o3bo19bobo5bo3b4o$7bob3o18b2o7b3obo$4bobo3b2o 6b2o11b2o6b2o3bobo$7bob3o7b2o18b3obo$4b4o3bo5bobo19bo3b4o$4b2obo3bo5b 2o20bo3bob2o$2o3bo3bo31bo3bo3b2o$o2bo2bo3bobo13bo11bobo3bo2bo2bo$2b2ob 2o4b2o12b3o10b2o4b2ob2o$5bo19bo2bo16bo$5bobo19b2o14bobo$6b2o35b2o4$19b 2o9b2o$19bo2b7o2bo$20bo3b3o3bo$21bo2bobo2bo2$16b2o4b3ob3o4b2o$16bo2b2o 2bobobo2b2o2bo$17b3ob3o3b3ob3o$22b2obob2o$19b2o9b2o$19bo11bo$21bo7bo$ 20b2o7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 52 HEIGHT 500 ]]

p104 found by Mitchell Riley on August 26, 2022 (click above to open LifeViewer) Catagolue: here

x = 93, y = 80, rule = B3/S23 35bo2$33bob3o$35b2obo$35bob2o$36b3obo2$38bo10$42b3o$41bo2bo13b2o$23bo 18b2o14bo$22b5o5b2o22bobo$21bo11bo22b2o$22b2o15b2o11b2o$23b2o13b3o11bo bo$25bo13b2o6b2o4b2o$47b2o$11b2o$5b2o4b2o6b2o13bo$5bobo11b3o13b2o31bo$ 6b2o11b2o15b2o29b3o$2b2o22bo11bo13b2o12b3obo$bobo22b2o5b5o14b2o13bo3bo $bo14b2o18bo31bo3bo$2o13bo2bo50bob3o$15b3o52b3o$46bo24bo$45bobo$44b2ob 2o$44bo25bobo$44b2o24bo12bo$74bo7bobo$75bo6bo$68b3o17bo$68bobo11bo$21b o48b2o9bo2bobobo$69b3o9bo$19bob3o45bobo8b3o8b2o$21b2obo43b3o2bo7bo9bo$ 21bob2o14b2o26bo3b3o8bo6bobo$22b3obo12b2o27bo2b2o16b2o$66b3o16b2o$24bo 40bo2bo7bo8bobo$66b3o6bobo2b2o4b2o$49bo16b2o7bobo2b2o$44b2o2bobo7b2o 16bo$38b2o4b2o2bobo6b3o$38bobo8bo7bo2bo$39b2o16b3o$35b2o16b2o2bo$34bob o6bo8b3o3bo$34bo9bo7bo2b3o$33b2o8b3o8bobo$44bo9b3o$37bobobo2bo9b2o$43b o11bobo$37bo17b3o$43bo6bo$41bobo7bo$42bo12bo$53bobo3$54bo$53b3o$52b3ob o$53bo3bo$54bo3bo$55bob3o$56b3o$57bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 52 HEIGHT 500 ]]

p104 found by David Raucci on September 7, 2026 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p110

x = 72, y = 25, rule = B3/S23 17bo36bo$16bobo6b2o18b2o6bobo$13b2o3bo6bo20bo6bo3b2o$7b2o5b3o6bobo20b obo6b3o5b2o$6bo2bo7bo5b2o22b2o5bo7bo2bo$7b2o9b2o32b2o9b2o$7b2o9b2o32b 2o9b2o$2b2o5bo7bo2bo30bo2bo7bo5b2o$bobo6b3o5b2o32b2o5b3o6bobo$bo6bo3b 2o17bob2o2b2obo17b2o3bo6bo$2o6bobo18bo3b2o2b2o3bo18bobo6b2o$9bo19bo12b o19bo$30bo10bo$19bo32bo$2o16bobo30bobo16b2o$bo19bo28bo19bo$bobo13bo2b o30bo2bo13bobo$2b2o4b3o5b2o36b2o5b3o4b2o$7bo2bo8bo32bo8bo2bo$7bo8bo2b o32bo2bo8bo$9b2o5b3o4b2o22b2o4b3o5b2o$6bo2bo13bobo20bobo13bo2bo$5bo19b o20bo19bo$6bobo16b2o18b2o16bobo$7bo56bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 60 HEIGHT 500 STARTFROM 28 ]]

p110 found by David Raucci on February 17, 2022 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 39, y = 38, rule = B3/S23 14b2o4b2o$14bobo2bobo$16bo2bo$15bo4bo$4b2ob2o6bo4bo$5bobo7bo4bo7b2o$3b o5bo7b2o9b2o$2bob6o$2bo$3b4ob2o$3o3bob2o$o2b2o7b3o$3bo7bo2bo$bobo6bo$ b2o8bo2bo$12b3o7$24b3o$24bo2bo8b2o$28bo6bobo$24bo2bo7bo$24b3o7b2o2bo$ 29b2obo3b3o$29b2ob4o$36bo$29b6obo$9b2o9b2o7bo5bo$9b2o7bo4bo7bobo$18bo 4bo6b2ob2o$18bo4bo$19bo2bo$17bobo2bobo$17b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 60 HEIGHT 500 STARTFROM 82 ]]

p110 found by Caleb R. Hilton on November 30, 2025. Also a pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 80, y = 65, rule = B3/S23 22b2o$23bo$21bo5b2o$21b2o4bo5bo$24b2obo4bobo$19b5obob2o3bobo$18bo4bobo 2bo2b2ob2o$19b3obob2o4bo4bo$21b5obobob5o$26bo6bo$29b2o$16b2o$15bo2bo$ 15bob2o19b2o$14b2o22bo25bo$13bo3b2o9b2o6bobo24bobo$14b3o2bo7b2ob2o4b2o 25bob3o$17b2obo5b2ob3o28b2obo4bo$16bo2bo6bobo2b2o27bobobobobo$16b2o8bo 4b2o29bobob2o5bo$24b3o3b2o29bobo8bobo$62bo9bobo$43b2o26b2obob2o$43b2o 25bo3bobo2bo$13bo55b3ob2o3b2o$13b3o53b2obo2bo$16bo40b3o3bo5b3o2b2o$7bo 7b2o39b2o4b2o6bobo$6bobo44b2ob3o3b2o6bobob4o$4b3obo24b3o17b2o3bo3bo7bo bobo2bo$3bo4b2o10b2o11bo19bo2bo4b2o7bob2o$4b3o7b3o16b2obo17bo7b2o7b2o$ 6bob2o5b2o2bo3b2o10b2o10b2o6b2o3bo2b2o5b2obo$7b2o7b2o7bo20bo2bo13b3o7b 3o$6b2obo7b2o4bo2bo19bo2bo8b2o10b2o4bo$2bo2bobobo7bo3bo3b2o20b2o22bob 3o$2b4obobo6b2o3b3ob2o44bobo$7bobo6b2o4b2o39b2o7bo$4b2o2b3o5bo3b3o40bo $4bo2bob2o53b3o$2o3b2ob3o55bo$o2bobo3bo25b2o$2b2obob2o26b2o$5bobo9bo$ 5bobo8bobo29b2o3b3o$6bo5b2obobo29b2o4bo8b2o$11bobobobobo27b2o2bobo6bo 2bo$11bo4bob2o28b3ob2o5bob2o$12b3obo25b2o4b2ob2o7bo2b3o$14bobo24bobo6b 2o9b2o3bo$15bo25bo22b2o$40b2o19b2obo$61bo2bo$62b2o$49b2o$46bo6bo$44b5o bobob5o$43bo4bo4b2obob3o$44b2ob2o2bo2bobo4bo$45bobo3b2obob5o$45bobo4bo b2o$46bo5bo4b2o$51b2o5bo$56bo$56b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 60 HEIGHT 500 ]]

p110 found by David Raucci on October 2, 2026. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p118

x = 41, y = 48, rule = B3/S23 30bo$30bobo$29bobo$31bo3$28bo$27bobo$27bobo$28bo6$7b2o8bo$7bo8bobo13b 2o$5bobo2b3o4bo12bo2bo$4bobo4b3o16bobo$2o3bo24b3o$2o7$39b2o$8b3o24bo3b 2o$8bobo16b3o4bobo$7bo2bo12bo4b3o2bobo$7b2o13bobo8bo$23bo8b2o6$12bo$11b obo$11bobo$12bo3$9bo$9bobo$8bobo$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 59 HEIGHT 500 ]]

86P118 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p120

x = 41, y = 30, rule = B3/S23 34b2o$34b2o3$34b3o$35b2o$bo2bob2obo2bo19b2o$2o2bo4bo2b2o18b3o$bo2bob2o bo2bo20bobo$34b2o7$16b2o$15b2o$16bobo$17b2o$5b2o$5b2o21bo2bob2obo2bo$ 27b2o2bo4bo2b2o$28bo2bob2obo2bo$5b3o$6b2o$3b2o$3b3o$4bobo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 60 HEIGHT 500 ]]

p120 found by Carson Cheng on August 12, 2022 (click above to open LifeViewer) Catagolue: here

p127

x = 38, y = 39, rule = B3/S23 13bo$13b3o$16bo$15b2o3$7b2o20bo$7b2o8b3o8bobo$17b3o9bo$17bo$20bo2$17b 5o$19bo2b2o$21b2o$21bo14b2o$36b2o6$2o$2o14bo$15b2o$14b2o2bo$16b5o2$17b o$20bo$8bo9b3o$7bobo8b3o8b2o$8bo20b2o3$21b2o$21bo$22b3o$24bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 60 HEIGHT 500 STARTFROM 66 ]]

74P127 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p128

x = 55, y = 23, rule = B3/S23 7b2o37b2o$3bo2bobo5b2o23b2o5bobo2bo$b6o8bo23bo8b6o$o6b4o4bobo19bobo4b 4o6bo$ob2ob2o4bo4b2o19b2o4bo4b2ob2obo$b2o3bobo2bo14b2o15bo2bobo3b2o$4b obobob2obo10bo2bo13bob2obobobo$b4o8b2o9bobo13b2o8b4o$bo4b2o2b4obo8b3o 12bob4o2b2o4bo$2b3obo2bo4bo25bo4bo2bob3o$4b3o2b2o2bo27bo2b2o2b3o$9bobo 2bo2bo19bo2bo2bobo$4b3o2b2o2bo27bo2b2o2b3o$2b3obo2bo4bo25bo4bo2bob3o$b o4b2o2b4obo12b3o8bob4o2b2o4bo$b4o8b2o13bobo9b2o8b4o$4bobobob2obo13bo2b o10bob2obobobo$b2o3bobo2bo15b2o14bo2bobo3b2o$ob2ob2o4bo4b2o19b2o4bo4b 2ob2obo$o6b4o4bobo19bobo4b4o6bo$b6o8bo23bo8b6o$3bo2bobo5b2o23b2o5bobo 2bo$7b2o37b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 60 HEIGHT 500 ]]

p128 found by EvinZL on May 9, 2022 based on a partial by David Raucci (click above to open LifeViewer) Catagolue: here

x = 48, y = 38, rule = B3/S23 11b2o$12bo21b2o$12bobo19b2o$13b2o19b2o$35bo$9b2o14b2o7bobo$10bo14bobo 5b2obo$10bobo12b3o$11b2o14b2o$2bo25b3o3b2o$2b3o16b3o5bo4b2o$5bo15bo9b o$4b2o15b2obo3bob2o$23b2o3b2o7b2o$37b2o2$46b2o$46bo$2b2o40bobo$bobo40b 2o$bo$2o2$9b2o$9b2o7b2o3b2o$16b2obo3bob2o15b2o$16bo9bo15bo$12b2o4bo5b 3o16b3o$12b2o3b3o25bo$19b2o14b2o$20b3o12bobo$11bob2o5bobo14bo$11bobo7b 2o14b2o$12bo$12b2o19b2o$12b2o19bobo$12b2o21bo$35b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 60 HEIGHT 500 ]]

p128 found by iNoMed on May 15, 2023 based on a partial by Mitchell Riley (click above to open LifeViewer) Catagolue: here

x = 58, y = 47, rule = B3/S23 28bo$28b3o$31bo$30b2o$43b2o$43b2o2$17b2o31bo$17b2o24b2o4b3o$42bobo3b3o bo$42bo6bo3bo$42bo2bo4bo3bo$17b3o31bob3o$16bo3bo22bo2bo5b3o$15bo5bo22b obo6bo$16b2ob2o24bo$27b2o$10b2o$12bo2$21b2o23b2o2bobo$2o17b2o2bo22b2o 2bo$2o2b2o12bo4bo12b3o11bo2bo$5b2o11bo3bo12bo3bo11b2o$4bo2bo11b3o12bo 4bo12b2o2b2o$7bo2b2o22bo2b2o17b2o$5bobo2b2o23b2o2$45bo$46b2o$29b2o$12b o24b2ob2o$4bo6bobo22bo5bo$3b3o5bo2bo22bo3bo$2b3obo31b3o$3bo3bo4bo2bo$ 4bo3bo6bo$5bob3o3bobo$6b3o4b2o24b2o$7bo31b2o2$13b2o$13b2o$26b2o$26bo$ 27b3o$29bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 60 HEIGHT 500 ]]

p128 found by Period1GliderGun on July 7, 2025 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p135

x = 55, y = 64, rule = B3/S23 4b2o3bo2bo3b2o$4b5o4b5o$4b2o3bo2bo3b2o4$7b2o4b2o19b2o$6bo8bo17bo2bo$5b o2bo4bo2bo16bobo2bo2bo$6bo8bo16b2obob5o$7b2o4b2o16bo2b2o$30b3o3b2obo$ 21b3ob3o2b3o2b2obobo$21bo5bo2b3o3b2o2bo$21bo5bo3bo2b2o3bo$22bo3bo5b2o bob2o$23b3o7bobobo$33bobo2bo$34bo2b2o2$45bo$44bobo$2b6o$bo6bo$o8bo34b 3o$bo6bo35b3o$2b6o37bo2$9bo20bo$8bobo13bo4bobo13bo$23bobo2bo3bo11b3o$ 22bo3bobo3bo11b3o$8b3o11bo3bobo3bo$8b3o11bo3bo2bobo$9bo13bobo4bo13bob o$24bo20bo2$9bo37b6o$8b3o35bo6bo$8b3o34bo8bo$46bo6bo$47b6o$8bobo$9bo2$ 16b2o2bo$16bo2bobo$17bobobo7b3o$16b2obob2o5bo3bo$15bo3b2o2bo3bo5bo$14b o2b2o3b3o2bo5bo$14bobob2o2b3o2b3ob3o$15bob2o3b3o$19b2o2bo16b2o4b2o$13b 5obob2o16bo8bo$13bo2bo2bobo16bo2bo4bo2bo$18bo2bo17bo8bo$19b2o19b2o4b2o 4$37b2o3bo2bo3b2o$37b5o4b5o$37b2o3bo2bo3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 60 HEIGHT 500 STARTFROM 53 ]]

p135, found by Caleb R. Hilton on March 15, 2025. Also a honey farm hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p139

x = 48, y = 38, rule = B3/S23 35bo$34bobo$9bo24bobo$8bobo14bo7b2ob3o$8bobo14b3o11bo$6b3ob2o16bo4b2ob 3o4bo$5bo21b2o4b2obo5bobo$6b3ob2o30bobo$8bob2o29b2ob3o$47bo$41b2ob3o$ 41b2obo3$45b2o$45bo$43bobo$9b2o25b2o5b2o$8b2o26bobo$9bobo26b2o$3b2o5b 2o25b2o$2bobo$2bo$b2o3$3bob2o$b3ob2o$o$b3ob2o29b2obo$3bobo30b2ob3o$3bo bo5bob2o4b2o21bo$4bo4b3ob2o4bo16b2ob3o$8bo11b3o14bobo$9b3ob2o7bo14bobo $11bobo24bo$11bobo$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 60 HEIGHT 500 ]]

p139 found by Mitchell Riley on October 1, 2023. Also an I-heptomino hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p146

x = 57, y = 43, rule = B3/S23 37b3o$38b3o2$27bo26b3o$25b2o26b3o$27b2o$26bo2$53b3o$24bo18b3o8b3o$23b obo16bo2bo$23bobo16bo3bo$24bo16bo$42b2o3b2o5b2o$17bo26bo5bo2bobo$15b3o 27bo4bo3bo$5b2o7bo29bo5bo$6bo7b2o26b2o3b2o$6bobo32bo11b2o$7b2o33bo3bo 6b2o$42bo2bo$14b2o27b3o$2b2o10bo33b2o$2b2o19bobo22bobo$15bo8bo5b3o8b2o 7bo$15bo14bobo9bo7b2o$2bo12b2o13b3o6b3o$bobo11b3o21bo$b2o13b2o$14bo3b o13bo$15b3o13bobo$bo14b2o13bobo$o2bo28bo$o2bo$2bo$29bo$2bo26bobo$o2bo 24bobo$o2bo26bo$bo15bo$16bo2bo$16bo2bo$18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 60 HEIGHT 500 STARTFROM 44 ]]

p146 shuttle, found by Period1GliderGun on October 5, 2026. Also a traffic light shuttle. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p172

x = 48, y = 45, rule = B3/S23 16bo14bo$15bobo12bobo$16bo14bo2$9b2o26b2o$10bo26bo$10bobo22bobo$11b2o 5b2o15b2o$16b2obo$16bo$16b3o7$10b2o24b2o$10b2o24b2o2$18b2o$17b4o$8bobo bo4b4o5b6o4bob2o$2b2o3bo3b2o13b4obo2b3ob3o3b2o$bob5o2bo4b2o3bobo2b2o4b 2obo2b2obo5bo$5bo2b6o3bo4bo3b2o3b2ob2o3bo2bobobo$obo3bob2o18b2o4bo2b3o b3o2b2o$o3b2o4bobo2b2obo2b2o2bo3bobo4b2o5bo3bo$b3ob2o2bo2bob2ob2ob2o3b obobobobobob2o2b2ob3o$3bobo2bo3b2o2bobobobo3bo2bo3bobo3bo2bobo$3bo2b2o b3o2bo3bob2o3b2o4b2o3b3ob2o2bo$4b2o2bo3bo2bo2b2obo6bob2o7bo2b2o$6bo2b 2o6bo12bo5b3o2bo$6b2obob2o2bobo12bobo2b2obob2o$7bobo5b2o14b2o2b2obobo$ 7bob3o25bo2bo$4b2obo2bo26bo2bob2o$4bo2b5o24b2ob2o2bo$5b2o3bo25b2o3b2o$ 7b2o30b2o$7b2o30b2o$5b2o3b2o24b2o3b2o$4bo2b3o2bo22bo2b3o2bo$4b2o3bobo 24bobo3b2o$10bo26bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 60 HEIGHT 500 ]]

p172 found by David Raucci on August 25, 2024 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p174

x = 50, y = 50, rule = B3/S23 20b2o$19bobo$19bo$17b2ob4o$13b2obobobo2bo$13b2obo4bo2b2o$16bob2o2b2o2b o$16bobob2o2b2obo$17bo5bo3bo$18b3obob3o$20bobobo2$21b3o2$39b2o3bo$38bo 2bobobo2bo$38bob2obob4o$37b2o4bo$37bo2bobob5o$38bobobobobo2bo$39bo2bo 2bo2b2o$38bobob2o$10bo28b2obo2bo$4bo4bobo25bo2bob4o$4b3o2bobo25b2obobo $7bobob2o25bobo2b3o$4b4obo3bo24bobo4bo$4bo2bobo3bo6b3o16bo$6b2obo3bo6b o2bo$2o2bo2bo5bo8b2o$o2bobobo2bo2bo$b5ob2obo2bo$6bo2bob2o$b4obob2obo$b o2bobobo2bo12bo3bo$5bo3b2o12bo5bo$24bo3bo3$25b5o$23b3obob3o$22bo4bo4bo $22bob2o2bob2obo$23bo2b2o3bobo$24b2o2bo2bobob2o$26bo4bobob2o$26b4ob2o$ 30bo$28bobo$28b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 60 HEIGHT 500 ]]

p174 found by David Raucci on March 6, 2023 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p180

x = 55, y = 65, rule = B3/S23 17bo$16b3o$15bobobo$15bobobo$16b3o7bo$17bo7b3o$24b5o15b2o$43bobo$17bo 26bo$16b3o20b3o7bo$15bobobo18bo2bo7bo$10bo4bobobo18bo3bo$9bobo4b3o18b 2o2bo7bo$8bo3bo4bo6b5o10bo8bobo$8bo3bo12b3o12b2o$8bo3bo13bo7b2o12b3o$ 8bo3bo21b2o$8bo3bo6bo$8bo3bo6bo20b2o6b3o$9bobo27bo$10bo26b2o2bo6bobo$ 22bo15bo3bo6bo$22bo15bo2bo$39b3o7bo$49bo4$2b2o6b2o8b2o$o4bo2bo4bo6bo2b o$o4bo2bo4bo7bobo$o4bo2bo4bo7b3o$2b2o6b2o31b2o6b2o$31b3o7bo4bo2bo4bo$ 31bobo7bo4bo2bo4bo$31bo2bo6bo4bo2bo4bo$33b2o8b2o6b2o4$5bo$5bo7b3o$13b o2bo15bo$5bo6bo3bo15bo$4bobo6bo2b2o26bo$15bo27bobo$4b3o6b2o20bo6bo3bo $35bo6bo3bo$19b2o21bo3bo$4b3o12b2o7bo13bo3bo$13b2o12b3o12bo3bo$4bobo8b o10b5o6bo4bo3bo$5bo7bo2b2o18b3o4bobo$12bo3bo18bobobo4bo$5bo7bo2bo18bo bobo$5bo7b3o20b3o$10bo26bo$9bobo$9b2o15b5o$27b3o7bo$28bo7b3o$35bobobo $35bobobo$36b3o$37bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 6 GPS 60 HEIGHT 500 ]]

p180 found by Caleb R. Hilton and reduced by hotcrystal0 on February 21, 2025 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p186

x = 44, y = 47, rule = B3/S23 18b2o$17bobo$17bo$15b2ob4o$11b2obo3bo2bo$11b2obobo5b2o$4b2o8bo4b3o2bo $2o2b2o8bob2o4b2obo$2o2bob2o7bo3bobo3bo$5b3o8b3o3b3o$18bobobo$19b3o$5b 2o13bo$5b2o6$32b2o$32b2o$37b2o$7b2o28bo$6bobo26bobo$6bo28b2o$5b2o18b2o $10b2o14bo$10b2o12bobo$24b2o4$37b2o$37b2o2$37bo$21b2ob2o10bobo$19b3ob ob3o8bo2bo2b2o$18bo4bo4bo11bob2o$18bob2o2b2obobo8b2o$19bo2b2o3bobo$20b 2o2b2obobob2o$22bo4bobob2o$22b4ob2o$26bo$24bobo$24b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 60 HEIGHT 500 ]]

p186 found by David Raucci on September 9, 2022 based on a partial by EvinZL; reduced by Luke Kiernan on September 20, 2022, and further reduced by Period1GliderGun on May 21, 2025 (click above to open LifeViewer) Catagolue: here

p187

x = 69, y = 46, rule = B3/S23 19bo$17b3o$2o14bo$bo14b2o$bobo$2b2o2$37bo$36bobo$36bobo$35b2ob3o$41bo$ 35b2ob3o$11b3o21b2obo$13bo$10bob2o42bo$10b2o42b3o$53bo$53b2o2$64b2o$ 64bo$5b2o55bobo$4bobo55b2o$4bo$3b2o2$14b2o$15bo$12b3o42b2o$12bo42b2obo $55bo$30bob2o21b3o$28b3ob2o$27bo$28b3ob2o$30bobo$30bobo$31bo2$65b2o$ 65bobo$51b2o14bo$52bo14b2o$49b3o$49bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 60 HEIGHT 500 ]]

p187 found by Luke Kiernan on October 11, 2022. SKOP 187. (click above to open LifeViewer) Catagolue: here

p192

x = 40, y = 40, rule = B3/S23 22bo$21bobo$21bobo$12bo7b2ob3o$12b3o11bo$9bo5bo4b2ob3o4bo$8bobo3b2o4b2obo5bobo$8bobo18bobo$6b3ob2o16b2ob3o$5bo28bo$6b3ob2o16b2ob3o$8bob2o16b 2obo$35b2o$4bo30bo$3bobo27bobo$3bobo27b2o$b3ob2o$o$b3ob2o$3bob2o7b2o$14bo18b2obo$14bobo16b2ob3o$15b2o22bo$33b2ob3o$5b2o27bobo$4bobo27bobo$ 4bo30bo$3b2o$8bob2o16b2obo$6b3ob2o16b2ob3o$5bo28bo$6b3ob2o16b2ob3o$8bobo18bobo$8bobo5bob2o4b2o3bobo$9bo4b3ob2o4bo5bo$13bo11b3o$14b3ob2o7bo$16bobo$16bobo$17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 540 THUMBSIZE 2 ZOOM 12 GPS 60 ]]

CL48C loop (period 192), found by Luke Kiernan on June 7, 2022 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

p246

x = 39, y = 32, rule = B3/S23 4bo$3bobo$3bobo$2b2ob2o$2bo$3b4o$7bo$5bobo$5b2o$37b2o$2b2o33bo$bobo12b 2o17bobo$bo14bo18b2o$2o14bobo$17b2o4$37b2o$2b2o33bo$bobo31bobo$bo33b2o $2o$15bo16b2o$16b3ob2o9bobo$15b4o2bo9bo$18b2obo10b4o$36bo$32b2ob2o$33b obo$33bobo$34bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 60 HEIGHT 500 ]]

Related to the period-246 glider gun (click above to open LifeViewer) Catagolue: here

p300

x = 72, y = 52, rule = B3/S23 16b2o36b2o$16b2o36b2o3$17bo36bo$16b3o9bo14bo9b3o$15bo3bo6bobo14bobo6bo 3bo$17bo9bobo12bobo9bo$14bo5bo6bo16bo6bo5bo$14bo5bo30bo5bo$15bo3bo32bo 3bo$16b3o11bo10bo11b3o$29bobo8bobo$29bobo8bobo$30bo10bo4$8b2o52b2o$6bo 3bo50bo3bo$5bo5bo48bo5bo$2o2b2obo3bo13b2o18b2o13bo3bob2o2b2o$2o3bo5bo 13bo2bo14bo2bo13bo5bo3b2o$6bo3bo15bobo14bobo15bo3bo$8b2o16b3o14b3o16b 2o3$8b2o52b2o$6bo3bo50bo3bo$2o3bo5bo48bo5bo3b2o$2o2b2obo3bo48bo3bob2o 2b2o$5bo5bo48bo5bo$6bo3bo50bo3bo$8b2o52b2o4$30bo10bo$29bobo8bobo$29bob o8bobo$16b3o11bo10bo11b3o$15bo3bo32bo3bo$14bo5bo30bo5bo$14bo5bo6bo16bo 6bo5bo$17bo9bobo12bobo9bo$15bo3bo6bobo14bobo6bo3bo$16b3o9bo14bo9b3o$ 17bo36bo3$16b2o36b2o$16b2o36b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 60 HEIGHT 500 ]]

p300 shuttle, found by David Raucci on August 20, 2024. Also a traffic light shuttle. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

See also

• Oscillators with specific hassled object (category)