Period-48 pi-heptomino hasslers

Main article: Pi-heptomino hasslers

All known period-48 pi-heptomino hasslers.

x = 33, y = 26, rule = B3/S23 19bo$17b3o8b2o$7b2o7bo11b2o$8bo7b2o$8bobo15b6o$9b2o14bo3bo2bo$3b2o21b 2o3b2o$2bobo22bo$2bobob2o19bobo$3bobobo9bo9bobo$5bo11b2o7bo5bo$3bo2bo 12bo6bo5bo$6bo10b2o7bo5bo$o5bo10bo8bo$o5bo19bo2bo$o5bo20bo$3bobo19bobo bo$3bobo19b2obobo$5bo22bobo$2o3b2o21b2o$o2bo3bo14b2o$b6o15bobo$15b2o7b o$3b2o11bo7b2o$3b2o8b3o$13bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 36, y = 36, rule = B3/S23 24bo$18b2o2b3o2bo$18bo2bo3b3o$20b2o2bo5b2o$20bo4bo3bo2bo$22bob2o3bobo$ 19bobo8bob2o$20bo10b3o$32b2o$5b2o$5bobo$6b2o$2b2o$bobo14b2ob2o$bo16bo 3bo$2o17b3o5$14b3o17b2o$13bo3bo16bo$13b2ob2o14bobo$32b2o$28b2o$28bobo$ 29b2o$2b2o$2b3o10bo$2b2obo8bobo$4bobo3b2obo$3bo2bo3bo4bo$4b2o5bo2b2o$ 8b3o3bo2bo$8bo2b3o2b2o$11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found in much larger form by David Raucci on December 30, 2021 and independently by Mitchell Riley (partial) and Period1GliderGun (complete) on September 25, 2024 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 43, y = 21, rule = B3/S23 26bo$10bo13b3o5bo$9bobo11bo7bobo$6bo2bobo11b2o6bobo2bo$5bobobob2o17b2o bobobo$4bobobobo2bo15bo2bobobobo$4bo3bo3bo17bo3bo3bo$2bobobobob2obo15b ob2obobobobo$bobobo2bob2o19b2obo2bobobo$bobobo3bo3b2o5b3o5b2o3bo3bobob o$2obo3bob2o2b3o3bo3bo3b3o2b2obo3bob2o$bobobo3bo3b2o4b2ob2o4b2o3bo3bob obo$bobobo2bob2o19b2obo2bobobo$2bobobobob2obo15bob2obobobobo$4bo3bo3bo 17bo3bo3bo$4bobobobo2bo15bo2bobobobo$5bobobob2o17b2obobobo$6bo2bobo6b 2o11bobo2bo$9bobo7bo11bobo$10bo5b3o13bo$16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Luke Kiernan on September 2, 2022. Also a traffic light hassler. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 30, y = 36, rule = B3/S23 2o3bo$4bob2o$5b3o$bo6bo$obobobo2bo$b2obob3o2$b2obob3o$obobobo2bo$bo6b o12bo3bo$5b3o12bobobobo$4bob2o13b2ob2o$2o3bo$18bo9bo$17bo11bo$17bo3b2o b2o3bo$11b3o4b3obobob3o$10bo3bo4b2obobob2o$10b2ob2o5b2o3b2o3$19bo2bo$ 18bo4bo$17bo5bo$16b2ob2o$15bo7bo$14bo2b3obobo$15b3obob2o2$15b3obob2o$ 14bo2b3obobo$15bo7bo$16b2ob2o$17bo5bo$18bo4bo$19bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by cvojan on October 1, 2022 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 24, y = 25, rule = B3/S23 9b2o$9bo5b2o$6b2obo5b2o$6bobo$ob2o$2obo5$7b3o$7bo$7b3o4b3o$16bo$14b3o 5$20bob2o$20b2obo$15bobo$7b2o5bob2o$7b2o5bo$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by iNoMed on April 2, 2023, reduced from a larger oscillator by Mitchell Riley (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 54, y = 41, rule = B3/S23 13b2o$13b2o$19b2o$19bo$17bobo$17b2o$36bo$35bobo$14bo20bobo$8b2o3bobo 18b2ob3o$7bobo2bo2bo24bo$7bo5b2o19b2ob3o$6b2o26b2obo2$2o15b3o$bo14bo3b o$bobo11bo5bo$2b2o11bo5bo$6b2o7b3ob3o$5bobo$5b2o40b2o$46bobo$32b3ob3o 7b2o$32bo5bo11b2o$32bo5bo11bobo$33bo3bo14bo$34b3o15b2o2$16bob2o26b2o$ 14b3ob2o19b2o5bo$13bo24bo2bo2bobo$14b3ob2o18bobo3b2o$16bobo20bo$16bobo $17bo$35b2o$34bobo$34bo$33b2o$39b2o$39b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 with stable supports found by Mitchell Riley on April 25, 2023 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 41, y = 24, rule = B3/S23 15b2o7b2o$11b2obo2bo5bo2bob2o$9bo2bobobo2bobo2bobobo2bo$9b2obo2bo9bo2b ob2o$12bo3b2obobob2o3bo$12b2o4bo3bo4b2o2$10b4o13b4o$3bo6bo2bo13bo2bo6b o$2bobo6bo17bo6bobo$2bobo3b3o19b3o3bobo$b2ob2o2bo23bo2b2ob2o$bo37bo$2b ob2o29b2obo$obob2o10b2o5b2o10b2obobo$2o13bobo5bobo13b2o$15bo9bo$15bobo 5bobo$16b2o5b2o2$5b2o27b2o$6bo27bo$3b3o29b3o$3bo33bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by iNoMed on October 5, 2023 based on a partial by Carson Cheng (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 37, y = 36, rule = B3/S23 5b4o$4bo4bob2o$4bo4bo3bo$7b2o4bo$4b2o4bo2bo$3bo2bo3bo2bo7b3o$3bo2bo4b 2o7b3o7bo$3bo4b2o19b3o$3bo3bo4bo15bob3o$4b2obo4bo14bo3bo$8b4o14bo3bo$ 25b3obo$26b3o5bo$15b2ob2o7bo5b3o$15bo3bo12bob3o$16b3o12bo3bo$5bo24bo3b o$4b3o22b3obo$3bob3o22b3o$2bo3bo24bo$bo3bo12b3o$3obo12bo3bo$b3o5bo7b2o b2o$2bo5b3o$7bob3o$6bo3bo14b4o$5bo3bo14bo4bob2o$4b3obo15bo4bo3bo$5b3o 19b2o4bo$6bo7b3o7b2o4bo2bo$13b3o7bo2bo3bo2bo$23bo2bo4b2o$23bo4b2o$23b o3bo4bo$24b2obo4bo$28b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Caleb R. Hilton on November 21, 2024, and reduced by Period1GliderGun the same day (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 50, y = 20, rule = B3/S23 15b2o6b2o2b2o10bo$10bo4bo7bo3bobo8bobo$9bobo4b3ob2obo4bo9bobo2bo$6bo2b obo6bobobo14b2obobobo$5bobobob2o8bo14bo2bobobobo$4bobobobo2bo22b2obobo 3bo$4bo3bobob2o21bo3bobobobobo$2bobobobobo3bo12b3o5b2ob4ob2obobo$bobob 2ob4ob2o11bo3bo3bo5b2o4bobo$bobo4b2o5bo10b2ob2o2b2o4bo2b5ob2o$2ob5o2bo 4b2o17bo5b2o4bobo$bobo4b2o5bo19b2ob4ob2obobo$bobob2ob4ob2o20bo3bobobob obo$2bobobobobo3bo21b2obobo3bo$4bo3bobob2o22bo2bobobobo$4bobobobo2bo 14bo8b2obobobo$5bobobob2o14bobobo6bobo2bo$6bo2bobo9bo4bob2ob3o4bobo$9b obo8bobo3bo7bo4bo$10bo10b2o2b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Period1GliderGun on May 25, 2025 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 65, y = 65, rule = B3/S23 28bo$27b3o$26bob3o$25bo3bo$24bo3bo15bo$23b3obo15b3o$24b3o15b3obo$25bo 17bo3bo$44bo3bo$21bo8bo14bob3o$25bo3bobo3b2o9b3o$20bo5bo3bo4b2o10bo$15b 2o3b2o4bo$13bo2bo10bo14bo8bo$23bo2bo7b3o4bobo3bo$9bo8bo6b2o7b2o6bo3bo 5bo$8b3o26b2o7bo4b2o$7bob3o2bo4bo16b3o6bo$6bo3bo4b2ob2o15bobo8bo2bo$5b o3bo7bo17b2o9b2o$4b3obo43b2o$5b3o6bo37bo2bo$6bo6bobo$14bo35bo8bo$26b2o 30b3o$26bobo20bo4bo2b3obo$16b2o10bo7b2ob2o8b2ob2o4bo3bo$16b3o7bobo7bo 3bo10bo7bo3bo$10b2o2bo2bobo6b2o9b3o20bob3o$10b2o2b2o2b2o34bo6b3o$14b2o 37bobo6bo$54bo2$10bo$2bo6bobo37b2o$b3o6bo34b2o2b2o2b2o$3obo20b3o9b2o6b obo2bo2b2o$bo3bo7bo10bo3bo7bobo7b3o$2bo3bo4b2ob2o8b2ob2o7bo10b2o$3bob 3o2bo4bo20bobo$4b3o30b2o$5bo8bo35bo$49bobo6bo$9bo2bo37bo6b3o$11b2o43b ob3o$17b2o9b2o17bo7bo3bo$15bo2bo8bobo15b2ob2o4bo3bo$19bo6b3o16bo4bo2b 3obo$12b2o4bo7b2o26b3o$12bo5bo3bo6b2o7b2o6bo8bo$17bo3bobo4b3o7bo2bo$13b o8bo14bo10bo2bo$38bo4b2o3b2o$17bo10b2o4bo3bo5bo$16b3o9b2o3bobo3bo$15b 3obo14bo8bo$16bo3bo$17bo3bo17bo$18bob3o15b3o$19b3o15bob3o$20bo15bo3bo $35bo3bo$34b3obo$35b3o$36bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 7 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Caleb R. Hilton on June 17, 2025. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 38, y = 32, rule = B3/S23 14b2o$14bo2b2o$11b2obo3bo$10bo2bob3o$8bo2bobobo13bobo$8b2obobo10b2o2b ob2o2bo$11bob2o9bo3bo3b3o$8b2obo13b3ob2o$8bo2bob2o12bobob2o$10b2ob2o14b obobo$17bo11bo3bo2bo$16bobo9b2o2b2obobo$15bo3bo13bo2bo$5b3o7bo3bo11bo bo$5bob2o6b2ob2o11b2o$5b2o2bo$bo3b6o$obo2b2o2bo$b2o3b3o11b2o$29bo3b2o $b2o3b3o18b2obo$obo2b2o2bo17b3o$bo3b6o15bo6bo$5b2o2bo15bo2bobobobo$5b ob2o17b3obob2o$5b3o$26b3obob2o$25bo2bobobobo$26bo6bo$27b3o$27b2obo$29b o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Caleb R. Hilton on November 28, 2025. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 48, y = 40, rule = B3/S23 33bo5bo$32b3o3b3o$31bobobobobobo$30b2obobobobob2o$30bob4ob4obo$30b5o3b 5o$18b3o$17bo$2b2o13bo3bo12b2ob2o$o2bo13bo2bobo10bobobobo$11bo7bobo2b o9bo3bo$11b3o6bo3bo$2obo10bo9bo$2bobo2b2o4b2o6b3o$3bo4bo$4bo$4bo2bo31b o$38b3o$29b2ob2o3b5o$15b3o11bo3bo$14bo3bo11b3o$6b5o3b2ob2o$7b3o$8bo31b o2bo$43bo$39bo4bo$24b3o6b2o4b2o2bobo$23bo9bo10bob2o$23bo3bo6b3o$9bo3b o9bo2bobo7bo$8bobobobo10bobo2bo13bo2bo$9b2ob2o12bo3bo13b2o$30bo$27b3o $5b5o3b5o$5bob4ob4obo$5b2obobobobob2o$6bobobobobobo$7b3o3b3o$8bo5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Caleb R. Hilton on January 11, 2026. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 44, y = 32, rule = B3/S23 23bo$21b3o$20bo$20b2o4$34bo$32b3o$31bo$31b2o2$39bobo$12b2ob2o21bo$b2o 9bo3bo22bo2bo$o2bo9b3o23bobobo$obobo23b3o9bo2bo$bo2bo22bo3bo9b2o$5bo21b 2ob2o$2bobo2$11b2o$12bo$9b3o$9bo4$22b2o$23bo$20b3o$20bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by Caleb R. Hilton on January 14, 2026. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 62, y = 48, rule = B3/S23 35bo$34bobo$33bo2bo$34b2ob2o$35bobobo$35bob3o9b2o$9b2o19bob2obobo11bo b2o$9bo2bo17b2obob5o10bo2bo$10b5o19bo3bo6bo4bo2bo$7bo7bo21b2o5bobo3bo 2bo$5b3ob6o20b2obo6b2o3b3o$4bo3b2o27b3o$5b3o2bob2o31b2o3b3o$7bo2bo2bo 30bobo3bo2bo$36bo2bo5bo4bo2bo$10bo22bo3b2o11bo2bo$b2o8b2o19bobo14bob2o $o2bo6bo17b2o2bo2bo3b3o7b2o$3o6b2o8b2o7b2o3b2o4b3o$3b6o10b2o$2bo2b4o$ 2b2o2b2o$39b2ob2o$19b3o17bo3bo$18bo3bo17b3o$18b2ob2o$54b2o2b2o$53b4o2b o$41b2o10b6o$20b3o4b2o3b2o7b2o8b2o6b3o$11b2o7b3o3bo2bo2b2o17bo6bo2bo$ 9b2obo14bobo19b2o8b2o$8bo2bo11b2o3bo22bo$8bo2bo4bo5bo2bo$8bo2bo3bobo30b o2bo2bo$9b3o3b2o31b2obo2b3o$22b3o27b2o3bo$9b3o3b2o6bob2o20b6ob3o$8bo2b o3bobo5b2o21bo7bo$8bo2bo4bo6bo3bo19b5o$8bo2bo10b5obob2o17bo2bo$9b2obo 11bobob2obo19b2o$11b2o9b3obo$22bobobo$23b2ob2o$25bo2bo$25bobo$26bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 9 GPS 24 HEIGHT 500 THEME Book STARTFROM 48 ]]

p48 found by hotcrystal0 on February 9, 2026. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here