User:C28/U-turner gallery

For U-turner related things.

x = 4, y = 4, rule = B3/S23 b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL OFF ]]

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

What is a U-turner?

The U-turner (or U in conduit names) is a somewhat common methuselah in Conway's game of life. Even though it was discovered in 1971, it wasn't until May 2021 that it was recognized as a distinct object.

Conduits and converters

Stable

U-turner as input

found by Lucy D'Agostino

14$32b3o$32b3o$21b2o8bobo$21bobo7b2o$22bo12$35b2o$35b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UR63P (click above to open LifeViewer)

4b2o$4bobo2b2o$bo4bo3bo$b5ob3o$5bobo$b3obobo$o2bob2o$2o4$7b3o$7b3o$6bobo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UFx104U (click above to open LifeViewer)

4$13b3o$13b3o$12bobo$12b2o7$14b2obo$14b2ob3o$6b2o12bo$7bo6b2ob3o$4b3o8bobo$4bo10bobo$16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] ULx44R (click above to open LifeViewer)

6$5b2o$6bo$5bo$5b2o$7bo6b3o$5b3o6b3o$4bo8bobo$4b2o7b2o5$8bo$7bobo$8bo2$19b2o$19b2o2$10b2o12b2o$9bobo12b2o$9bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] URx71B (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o6$23b2o$5b2o15bo2bo$6bo15bobobo$3b3o15b2o2bo$3bo14bo4b2o$18b5o$16b2o4bo$17bo2b2o$17bobo$12bo2bobobo$12b4ob2o$16bo$14bobo$14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UR40G (click above to open LifeViewer)

6b2o$6b2o2$6b4o12b2o$6bo2bo$23bo2b2o$2o22b3o$bo23bo$bobo$2b2o28bo$31bobo$13b2o17bo$13b2o5$29b2o$25bo3b2o$24bobo$23bobo$23bo$22b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] URx141R, reduced by Simon Ekström (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o2$23b2o$23bo$24bo$23b2o$22bo$5b2o15b3o$6bo18bo$3b3o18b2o$3bo10bo$13bobo$5b2o6bobo$5bo2bo5bo10b2o$6b2obo15b2o$3b3o2bo$2bo3b2o$3b2o22b2o$4bob2o14b2obo2bo$4bo2bo13bobob2o$5b2o14b2o2bo$25bobo$9b2o15b2o$10bo$7b3o$7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UF66G (click above to open LifeViewer)

33b2o$33bo3b2o$29b2o4bo2bo$24b2o3b2o3b4o$18bob2obobo$18b2obobo10b2o$22b2o10bobo$5b3o27b2o$5b3o$4bobo$4b2o3$27b2o$26bo2bo$27b2o3$38b2o$30bo7bobo$17b2o10bobo8bo$2b2o13b2o11bobob2o4b2o$3bo5b2o17bobobobobo$3o6b2o17b2obo4bo$o30bob3o$31bobo$32bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UR131G (click above to open LifeViewer)

43b3o$43b3o$42bobo$42b2o2$2o$obo$b2o4$6b2o$5bo2bo38b2obo$6b2o39b2ob3o$53bo$32b2o13b2ob3o$32b2o14bobo$41bo6bobo$40bobo6bo$41b2o$23b2o$23bobo$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UB211H (click above to open LifeViewer)

29b3o$10b2o17b3o$10b2o16bobo$28b2o8$2b2o$bobo29b2obo$bo31b2ob3o$2o37bo$33b2ob3o$19b2o13bobo$19b2o6bo6bobo$26bobo6bo$27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UB140G (click above to open LifeViewer)

5b3o$5b3o$4bobo$4b2o15b2o$22bo$22bob2o$21b2obo2bo$24bob2o$24bo$23b2o3$20b2o$20bo$2b2o17b3o$3bo5b2o12bo$3o6b2o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UB90G (click above to open LifeViewer)

7b2o$5b3o$2o2bo4bo$o3bob2ob3o$b3obobo4bo$3bobo3b3o10b3o$3bobobobo12b3o$4b2ob2o12bobo$21b2o9$26b2obo$26b2ob3o$32bo$26b2ob3o$27bobo$20bo6bobo$19bobo6bo$20b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UL85H (click above to open LifeViewer)

5b3o$5b3o$4bobo$4b2o18b2o$24b2o2$31bob2o$31b2obo6$22b2o$2b2o15bobo2bo$3bo5b2o6b3obob2o$3o6b2o5bo4bo$o16b3obo4b2o$19b2o5bo$27b3o$29bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UBx143H (click above to open LifeViewer)

b3o$b3o5b2o$obo6b2o$2o10$5b2o$4bo2bo$5b2o$10b2o$8bo2bo$8b3o$5bo$2o3b4o$obo5bo$2bo4bo$2b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UR254S (click above to open LifeViewer)

11bo$10bobo$10bobo$9b2ob3o$15bo$9b2ob3o$9b2obo2$13bo$4b3o4b3o$4b3o3bo$3bobo4b2o$3b2o6$10b2o$10bo$b2o8b3o$b2o3b2o5bo$6bobo$8bo$obo5b2o$2obo$3bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UB84G (click above to open LifeViewer)

15b3o$15b3o$14bobo$14b2o4$2o4b2o$2o4b2o$25b2o$26bo$21b2obo$22bob2o$20bo3bo$9b2o7b3obo2bo$10bo6bo4b4o$7b3o8b3o$7bo12bob2o$21bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UB68H (click above to open LifeViewer)

5b3o$5b3o19b2o$4bobo20bobo$4b2o23bo2b2o$28b2obobo$31bo$28b4o$28bo3b2o$29b3o2bo$24b2o6bobo$24bobo4b2ob2o$25b2o5bo$20b2o8bobo$20bo9b2o$2b2o17b3o$3bo5b2o12bo$3o6b2o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UB90G (click above to open LifeViewer)

found by Daniel Vargas

3$3b2o$4bo$4bobo8b3o$5b2o8b3o$14bobo$14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UR36C (click above to open LifeViewer)

x = 15, y = 20, rule = B3/S23 2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o$6bo$3b3o$3bo$11b2o$12bo$9b3o$9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UR38B (click above to open LifeViewer) RLE: here Plaintext: here

2$2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o12b2o$6bo12b2o$3b3o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UF38G (click above to open LifeViewer)

$8b3o$8b3o$7bobo$7b2o4$4b2o$5bo$2b3o$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] URx13B (click above to open LifeViewer)

$5b3o$5b3o$4bobo$4b2o6$10bo$9bobo$10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UBx31B (click above to open LifeViewer)

4$8b3o$8b3o2bo$7bobo2bobo$7b2o4bo3$11b2o$11bobo$13bo$7b2o4b2o$7bo$8b3o$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UL73H (click above to open LifeViewer)

$b2o$2bo$bo$b2o$3bo6b3o$b3o6b3o$o8bobo$2o7b2o5$4bo$3bobo$4bo5$6b2o$5b obo$5bo$4b2o$26bo$25bobo$25bo2bo$18b2o6b2o$18bo$19b3o$21bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] URx330S (click above to open LifeViewer)

6b2o$7bo$7bobo$8b2o$2bo10bo$2b3o7bobo$5bo6bobo$2b2obo7bo$bobob2o$o6bo$7o2$2b3o$bo2bo$b2o12b2o$14bo2bo$15b2o6b2o$4b2o17b2o$3bobo$3bo$2b2o6$11b3o$11b3o$10bobo$10b2o13$4b2o$4bo3b2o$b2obo2bobo$bobob3obobob2o$4bo3b2ob2obo$5b2o3bo$7b2obo$7bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UB147G (click above to open LifeViewer)

2o$bo$bobo$2b2o6$13b3o$13b3o2bo$12bobo2bobo$12b2o4bo6$15b2o$11bo3b2o$10bobo$9bobo$9bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UF48C (click above to open LifeViewer)

found by Evin

2o$obo$2bo$2b2o$4bo6b3o$2b3o6b3o$bo8bobo$b2o7b2o8$12bo$11bobo$10bobo$8b3o2b3o3b2o$7bo3b2o3bo2b2o$8b3o2b2obo$10bobo2bo$11bobo$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UB26G (click above to open LifeViewer)

9b2o$10bo$8bo$6b4o$5bo12b3o$6b4o8b3o$10bo6bobo$8bobo6b2o$8b2o$2o$o2bob2o$b3obobo$5bobo$b5ob3o$bo4bo3bo$4bobo2b2o$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] UFx29U (click above to open LifeViewer)

found by Kalan Warusa

o$3o5b2o$3bo4b2o$2b2o3$3b2o$3b2o9$7b3o$7b3o$6bobo$6b2o12$13b2o$13bo$14b3o$16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UR120W (click above to open LifeViewer)

found by wwei47

4b2o28b2o$4bo2bo26bo$5b3o24bobo$2b3o27b2o$bo3bo30b2o$2b3o17b3o11bo$5b3o14b3o9bobo$4bo2bo13bobo10b2o$4b2o15b2o2$8b2o$2ob2o2bo2bo$2obo4bobo$3bo5bo$2obob2o$2obo2bo$4bo4bo4b2o$5b5o3bobo$13bo$7bo4b2o4b2o10b2o$6bobo9b2o6bo3b2o$7bo17bobo$24bobo$24bo$23b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 ]] UB142P (click above to open LifeViewer)

U-turner as output

Found by Paul Callahan

2o$bo$o5b2o$2o4bobo$8bo$6bob2o$6b2o2bo$9b2o6$5b3o$6bo$4b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] HBx63U (click above to open LifeViewer)

Found by Evin

11b2o$10bobo20bo$10bo21bobo$9b2o20b3o$31b3o5$bo$2bo15b2o$3o14bo2bo$18b2o3$34b2o$34b2o10$34bo$32b3o$31bo$29bo2bo$29b4o2$19b2o8b2o$19b2o9bo$13b2o15bob2o$14bo7b2o3b2obo2bo$11b3o7bo2bo3bob2o$11bo8bob2o3bo$20bo5bo$21b6obo$23bo3bobo$26bo2bo$27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] G to U-turner (click above to open LifeViewer)

Found by Caleb R. Hilton

12b2o8b2o$3bo9bo8bo$3b3o7bob2o3bobo$6bo7bo2bo2b2o$5b2o9b2o$2o$bo$bobo$ 2b2o4bo$7bobo$7bo2bo$8b2o6$24b3o$23bo3b2o$22b2o3bo$21bo5bo$20bob2o4b2o $19b2o2bo6bo$22b2o2bo$22b2ob2o$23bo$24b5o$25bo2b3o2b2o$28bob2o2bob2o$ 28bo3bobo2bo$29b5o5bo$28bo2bo2bo5bo$40bo$35b3o$35bo$34bo$35b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] 67P5H1V1 to U-turner (click above to open LifeViewer)

Periodic

U-turner as input

U to U-turner

b3o$b3o$obo12bo$2o13bo$13bobo$9bo2b2obo$7b3o2b2o$9bo$13b2o2bo$13bo2bobo$14b2o2bo$4b2o12b2o2$6bo$3b3obo$2bo4b3o$o5bo3bo$o5b5o$obobo2bo$2bo4bob4o$8b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] see 255P132#Variations (click above to open LifeViewer)

8b3o$8b3o6bo$7bobo5b2o$7b2o8b2o$16bo3$15b2o$15bobo$17bo$17b2o5$4bo3b7o3bo$4b3ob7ob3o$3bobo4b3o4bobo$2bo2b4o5b4o2bo$2obob4o5b4obob2o$4o4b2o3b2o4b4o$bob2o13b2obo$4b3o3bobo3b3o$7bo3bo3bo$6bo2bobobo2bo$2bo4b3obob3o4bo$2bob3o3bobo3b3obo$3bo2bobobobobobo2bo$4bobob2o3b2obobo$5bo11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p4 (click above to open LifeViewer)

31bo$31bo$2o4b2o23bo$obo2bobo22b2o$2bo2bo22bo$bo4bo20bo4bo$b6o20bo$2b4o23b3o2$11b3o22b3o$11b3o22b3o$2b2o6bobo14b2o6bobo$2b2o6b2o15b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] left: p5 U conduit right: p3 version found by Daniel Vargas. stable versions found by EvinZL (click above to open LifeViewer)

14b2o4b2o$15bo4bobo4b2o3b2o$4b3o8bob2obo2bo3bobobobo$4b3o7b2obobob2o6bobo2b2o$3bobo7bo3bobo8b2ob2obo$3b2o8b2ob2obo7bo6bo$13bo5bo3bo2b2o2b2o2b2o$13b2obo2bo2b2o2b3o3bobo2bo$13b2obo4bobo2b2o4bobob2o$13bo8bo2b2o2bo2b3o$13b2ob2o2bo5bo3bo3bo$13bo3bo3b5o5b3o$14b2obob2o8bobo$15bob2o3b4o3b2o$15bo4b2o4bo$16b3obo2b3o$18b2o2b2o$4b8o$o2bobob2obobo$4o8b3o$5bob2obo4bo$2b4o4b4obo$2bo10bob2o$3b5o4bo3bo$3o7bobob2o$o2bo4bo2bo2bo$bobo3bobobobo2bo$2bo3b3o2bobob2o$11bobobo$9bobobobo$6b5o3bo$b2o2b4o$bo2bo2bo$2b3o4bo2b2o$6bo3bo2bo$2b3obo4b2o$bo2bo2b3obo$b2o6bobo$3b8o$3bo2bo$8bo$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p5 (click above to open LifeViewer)

8b2o$8b2o$15b3o$15b3o$14bobo$14b2o$5b2o$5bo2bo3$5bob2o$2o2bobo$o4bo$4bo$bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p6 (click above to open LifeViewer)

b3o$b3o$obo$2o6bo$7bobo$8bo8$2bo$b3o$3obo$bo3bo$2bo3bo$3bob3o$4b3o$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 7+ (click above to open LifeViewer)

27b3o$14bo12b3o$10b2obobo10bobo$10b2obobo10b2o$3b2o8bob2o$4bo5b4o3bo$3bo5bo4bob2o$3b2o4b2ob2o3bo$b2o3bo2b2o4b2o$o2bob2o2b3obobo$bobo2bobo2bo3bo$2o2bobob4ob2o$2bob2obo4bo$2bo4bob2obo$b2o4b2ob2o17b4o$28b6o$28bo4bo$29bo2bo$27bobo2bobo$27b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] pipsquirter has to be at p7, but the domino sparker can be of any period 5 and larger. (click above to open LifeViewer)

U to Glider

Single period

p5

6b2o$5bo2bo$o2bo2bobo$5obob2o7b3o$6b2o2bo6b3o$2bob2o3b3o4bobo$bobob2o2b3o4b2o$bo2b2o3b3o$2bo3b2o2bo$3b2obob2o$4bobobo$3bo2bobo$3b2o2bo$18b2o$18bo$19b3o$21bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

6b3o$6b3o$5bobo$5b2o7$3b7o$b3ob3ob3o$o4b3o4bo$ob3obob4o$bo$3bobobob2obo$2b2obobobob2o$3bobo2bo$3bo2b2o$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

6b2o$5bo2bo$o2bo2bobo$5obob2o$6b2o3bo$2b3o2b2o8b3o$bobo2bobo3bo4b3o$bob2o2b2o7bobo$2bo3b2o3bo4b2o$3b2obob2o$4bobobo$3bo2bobo$3b2o2bo2$18b2o$18bo$19b3o$21bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p6

8b3o$8b3o$7bobo$7b2o$16b2o$16b2o4$9b2o2$5bo8bo$4b2o8b2o$4b2o8b2o$7b6o$2bo14bo$b4o10b4o$o3bo10bo3bo$b3o12b3o3$b3o12b3o$o3bo10bo3bo$2ob2o10b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p7

4b3o$4b3o$3bobo$3b2o12$4b2ob4ob2o$3bob8obo$3bobobo2bobobo$b3obo2b2o2b ob3o$o4bo2b2o2bo4bo$b3obo6bob3o$3bob2o4b2obo$4b10o$7bo2bo$7bo2bo$3bo3bo2bo3bo$b3o3bo2bo3b3o$o5bo4bo5bo$b3o3bo2bo3b3o$3bo3bo2bo3bo$7bo2bo$7bo2bo$4b10o$3bob2o4b2obo$b3obo6bob3o$o4bo2b2o2bo4bo$b3obo2b2o2bob3o$3bobobo2bobobo$3bob8obo$4b2ob4ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p8

5b3o$5b3o$4bobo$4b2o13$6b3o2b3o$6b3o2b3o$6b3o2b3o$7b2o2b2o$7b2o2b2o$8bo2bo$3b2o3b4o3b2o$3bo5b2o5bo$bobo5b2o5bobo$b2ob2o8b2ob2o$4bo2bob2obo2bo$b2obobobo2bobobob2o$obobo3bo2bo3bobobo$obo4b2o2b2o4bobo$bo2b3o6b3o2bo$2b2o2bo6bo2b2o$4b2o8b2o$4bo3b4o3bo$b2obo2b6o2bob2o$2bobobob4obobobo$2bobob2o4b2obobo$b2obobo6bobob2o$2bob2o8b2obo$2bobo10bobo$b2obo2bo4bo2bob2o$4bo3bo2bo3bo$4bobob4obobo$5bobo4bobo$8b4o$3b4obo2bob4o$3bo2b2o4b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p15

6b2o9b3o$5bo2bo8b3o$o2bo2bobo7bobo$5obob2o6b2o$6b2o3bo$2b3o2b2o$bobo2bobo3bo$bob2o2b2o$2bo3b2o3bo$3b2obob2o$4bobobo$3bo2bobo9bo$3b2o2bo10bo 2$18bo$17bobo2$17b3o3$17b3o2$17bobo$18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] makes 2 gliders (click above to open LifeViewer)

b3o$b3o$obo$2o2$10b2o6b2o$9bo2bo4bo2bo$8b6o2b6o$9bo2bo4bo2bo$10b2o6b2o6$3bo$2b3o3$2b3o2$2bobo$2bobo2$2b3o3$2b3o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

Multiple periods

6b2o$6bobo$8bo$3bo2bob2o$3b4o2bo$7b2o8b3o$3b4o2bo7b3o$obo3bob2o6bobo$2obo4bo7b2o$3bob2obo$3bo3bob2o$2ob2o2bobo$obo2bobobo$2bobo2bo2b2o$2bo 5bobo$b2ob5obo$2bo6bo$2bobo2b2o$3b4o$8b3o$b7o2bo$bo2bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 7+ (click above to open LifeViewer)

9b2o$9bobo$b3o6b3o$b3o7b2o$obo5b2o$2o6b3o3$9b2o$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 5+, excluding 7 (click above to open LifeViewer)

21b3o$21b3o$20bobo$20b2o3$2bo6bo$b2o6b2o$3o6b3o$b2o6b2o15bo$2bo6bo15bobo$26b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 6+ (click above to open LifeViewer)

7b3o$7b3o$6bobo$6b2o5$8o$ob4obo$8o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 4+ (click above to open LifeViewer)

2bo2bo4bo2bo$3o2b6o2b3o4b3o$2bo2bo4bo2bo6b3o$19bobo$19b2o3$16b2o$17bo$14b3o$14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 8+ (click above to open LifeViewer)

4b2o$5bo$5bobo$6b2o7b3o$15b3o$14bobo$14b2o3$4b2o$3b4o$2b3ob2o$2bo3b3o$3o5bobo$2bob3ob2obo$4b2o3b2o2$4b2o3b2o$2bob3ob2obo$3o5bobo$2bo3b3o$2b3ob2o$3b4o$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 16+ (click above to open LifeViewer)

19b2o3bo$18bo2bobobo2bo$9b3o6bob2obob4o$9b3o5b2obo2bo$8bobo6bo4bobob3o$8b2o8bobobobo4bo$18bobobob2o2b2o$18bobob3o$18bobo4bo$17bo2bobob2o$17b2obobo$18bobo2b3o$18bobo4bo$2b2o15bo$bobo$bo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 4+ (click above to open LifeViewer)

16b2o3bo$15bo2bobobo2bo$6b3o6bob2obob4o$6b3o5b2obo2bo$5bobo6bo4bobob3o$5b2o8bobobobo4bo$15bobobob2o2b2o$15bobob3o$15bobo4bo$14bo2bobob2o$14b2obobo$15bobo2b3o$15bobo4bo$16bo2$11b2obo$11b2ob3o$17bo$11b2ob3o$12bobo$2b2o6bo$3bo6b2o$3o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 4+ (click above to open LifeViewer)

22b3o$22b3o$21bobo$21b2o6bo$28bobo$29bo$bo2bob2obo2bo$2o2bo4bo2b2o$bo2bob2obo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 3+ (click above to open LifeViewer)

17b2o$6bo2bo2bo3bo2bob2o$6b7o2bob3obo$2o13bo6b3o$bo2b11obob4o2bo$bobo4bo5bobo4bo30bo$2o2bo4b3o3b2o2bo8b3o19b3o$o2bo2bo3bobo4bo2bo5b5o10b3o5bo$b2ob2o5b3o3b3o4b7o10b3o5b2o$2bobo6b3o6bob3o15bobo$2bobo6b3o6bob3o15b2o$b2ob2o5b3o3b3o4b7o$o2bo2bo3bobo4bo2bo5b5o$2o2bo4b3o3b2o2bo8b3o$bobo4bo5bobo4bo$bo2b11obob4o2bo$2o13bo6b3o22b2o$6b7o2bob3obo24bo2bo2b2o$6bo2bo2bo3bo2bob2o9b2o12bobo4bo2bo$17b2o12bobo13bo5bobobo$31bo18b2obo2bo$30b2o4b2o5b2o5bo2bo$37bo5bo3bo4bo$34b3o7b8o$34bo$46b4o$46bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 7+ excluding 13 and 14 (click above to open LifeViewer)

45b2ob2o4b2o$44bob2obo4bo$44bo4bob2obo$42b2ob4obobo2b2o$41bobo4bobo2bobo$41bo2b2o2bob4o2bo$40b2obo4bobo3b2o$39bo2b2obo2bo3b2o$27b3o8b3obo4bo5bo$14bo12b3o9bo3b4o5bo$10b2obobo10bobo11b2obo8b2o$10b2obobo10b2o13bobob2o$3b2o8bob2o24bobob2o$4bo5b4o3bo24bo$3bo5bo4bob2o$3b2o4b2ob2o3bo$b2o3bo2b2o4b2o$o2bob2o2b3obobo$bobo2bobo2bo3bo$2o2bobob4ob2o$2bob2obo4bo$2bo4bob2obo$b2o4b2ob2o22b2o$34b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 7n, n≥4 (click above to open LifeViewer)

9b3o$9b3o$8bobo$8b2o$bobo$o$bo2bo5b2o$bobobo4bo$2bo2bo5b3o$3b2o8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 3+ (click above to open LifeViewer)

18b3o$18b3o$17bobo$17b2o$2bo4bo$2ob4ob2o$2bo4bo6$16bo2bo$14bo2b2o2bo$14bo2b2o2bo$16b4o$14bobo2bobo$14b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 10+ (click above to open LifeViewer)

b2o6b2o$o2bo4bo2bo7b3o$o2bo4bo2bo7b3o$o2bo4bo2bo6bobo$b2o6b2o7b2o5$12b2o$12b2o4$18b2o$16bo4bo$16bo4bo$16bo4bo$17bo2bo$15bobo2bobo$15b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 11+, excluding 17-21 (click above to open LifeViewer)

8b3o$8b3o$7bobo$7b2o3$14b2o6b2o$13bo2bo4bo2bo$12b6o2b6o$13bo2bo4bo2bo$14b2o6b2o6$bo2bob2obo2bo$2o2bo4bo2b2o$bo2bob2obo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 9+ (click above to open LifeViewer)

b3o$b3o$obo$2o$9bo2bo4bo2bo$7b3o2b6o2b3o$9bo2bo4bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 15+ (click above to open LifeViewer)

3bo$2b2o$bob2o$3o2bo$2bobobo$3bobobo$4bo2b3o$5b2obo$6b2o$6bo$13b3o$13b3o$12bobo$12b2o18$21b2o$21bo$22b3o$24bo$16bo$15b2o$14bob2o$13b3o2bo$15bobobo$16bobobo$17bo2b3o$18b2obo$19b2o$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 4+ (click above to open LifeViewer)

9b3o$9b3o$8bobo$8b2o5$17b2o$17b2o3$16b3o$5bo10b2o$5bo13b2o$4b3o11b3o$17bobo$17b2o$5b2o$2b2ob3o$bobo$bo4b4o$2bo$3bo$3o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] center sparker works for periods 4+, rightmost sparker works for periods 6+ (click above to open LifeViewer)

4bo$2o2b2ob3o$2o4b4o$4b2o2$15b3o$15b3o$14bobo$14b2o5$3b2o$3b2o5$13b2o$14bo9b2o$11b3o9b4o$11bo10bob2ob2obo$27b2o2bo$22b2o2b2o2b3o$22b4obo2b3o$21bo2bo3bo2bo$20b3o2bob4o$20b3o2b2o2b2o$21bo2b2o$22bob2ob2obo$26b4o$27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] topmost sparker works for periods 8+, bottom sparker just deletes junk (click above to open LifeViewer)

2o$bo20bobo6bo$bobo8b3o5b3ob3obobobo$2b2o8b3o4bo7b2ob2o$11bobo6b6o$11b2o8bo4b3o$21b3o3b2ob2o$21bobob2o3bo$21bobob2o3bo$21b3o3b2ob2o$21bo4b3o$20b6o$5b2o12bo7b2ob2o$6bo13b3ob3obobobo$3b3o16bobo6bo$3bo$11b2o$12bo$9b3o$9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 8+ (click above to open LifeViewer)

11b3o$11b3o$10bobo$10b2o2$2o$obo$bo5$14bo2$11bo5bo$8b2o4bo4b2o$7bob2ob2ob2ob2obo$7bo13bo$10bo7bo$7bo2bo7bo2bo$10bobo3bobo$7bob3obobob3obo$6bo15bo$6b3o2bobobobo2b3o$9bobobobobobo$6b2obo2b2ob2o2bob2o$6bob2o9b2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 3+ (click above to open LifeViewer)

b2o$b2o3b2o$b2o4bo$bo4bo$obo3b2o$ob2o9b3o$13b3o$12bobo$b2o9b2o$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 7+ (click above to open LifeViewer)

2o$o5b2o25b2o3bo$b3obobo24bo2bobobo2bo$3bobo26bob2obob4o$4bobo15b3o6b2obo2bo$5bo16b3o5bo2bob2ob5o$21bobo6bo2bo2bobobo2bo$21b2o7bo5bo2bo2b2o$30bo3bob2o$30bo3bobo2bo$30bo3bob4o$31b2obobo$32bobo2b3o$32bobo4bo$33bo10$7b2o$8bo$5b3o$5bo5b6o$10bo6bo$8b3o6b3o$7bo7b2o3bo$8b6o3b2obo$16bob2o$10b7o$9bobobo3b3o$9bobo3b2o3bo$8b2ob2obobob2o$15b2obo$16bobo$14bobob2o$14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 6+ (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o$6bo$3b3o14b2o$3bo15bobo$18b3o$18b2o$19bobo$20bobo2b2o$21bo2bobo$22b4o$23b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 4+ (click above to open LifeViewer)

4bo$2o2b2ob3o$2o4b4o$4b2o2$15b3o$15b3o$14bobo$14b2o5$3b2o$3b2o8$13b2o$13b3o$13b2obo$15bobo$14bo2bo$15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] top sparker works for periods 8+, bottom sparker works for periods 4+ (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o13b2o$6bo13b2o$3b3o$3bo4$16b4o$15b6o$15bo4bo$16bo2bo$14bobo2bobo$14b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 3+ (click above to open LifeViewer)

8b3o$8b3o$7bobo$7b2o5$16b2o$15bo2bo$14bo2bo$14bo6bo$2b2o9bo2bo3bobo$bobo10b3o3b2o$bo$2o12b3o3b2o$13bo2bo3bobo$14bo6bo$14bo2bo$15bo2bo$16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works for periods 4+ (click above to open LifeViewer)

19b3o$19b3o$18bobo$18b2o$2o3bo$4bob2o19b2o$5b3o17bo2bo$bo6bo16b3o$obobobo2bo$b2obob3o16b2obo$26bob3o$b2obob3o16bo5bo$obobobo2bo16b5o$bo6bo12bo6bo$5b3o12b3o$4bob2o11bob3o$2o3bo12bo3bo$17bo3bo$16b3obo$17b3o$18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] left sparker works for periods 15+, bottom sparker just suppresses a cell birth. (click above to open LifeViewer)

18b3o$bo16b3o$obo4bo9bobo$bo4bobo8b2o$6bobo$7bo$27b2o$27bo$25bobo$25b2o6$13bo12b2o$13bo12bobo$12b3o13bo$28b2o2$12b3o$13bo$13bo$13bo$13bo$12b3o3$12b3o$13bo$13bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 9+ (click above to open LifeViewer)

23b2o$23bo$21bobo$21b2o$12b3o$12b3o$11bobo$11b2o4$20bo$2b2o15bo2bo$3bo15bo2bo$3o18bo$o8b2o$9b2o3b2o$14bobo$16bo$8bobo5b2o$8b2obo$11bo$11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 2+ (click above to open LifeViewer)

U to B-heptomino

single-period

p8

15bob2o$2bo12b2obo$18bob2o8bo$ob3o6b2o5bo2bo3b2o2bobo$2b2obo5bobob2ob2o5bo3bobo$2bob2o7bobobo2b4obo2b2o2b2o$3b3obo4b2obobobo3bobobo2bobo$9bobo5bobob2o2bob2obobo8b3o$5bo4bobo3b4o2bobo2bo2bob2o7b3o$11bo9bo4bo2b2o2bo6bobo$12b9o3bobo2b2ob2o6b2o$32b2o$12b9o3bobo2b2ob2o$11bo9bo4bo2b2o2bo$5bo4bobo3b4o2bobo2bo2bob2o$9bobo5bobob2o2bob2obobo$3b3obo4b2obobobo3bobobo2bobo$2bob2o7bobobo2b4obo2b2o2b2o5b2o$2b2obo5bobob2ob2o5bo3bobo7b2o$ob3o6b2o5bo2bo3b2o2bobo$18bob2o8bo$2bo12b2obo$15bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

p15

15b3o$15b3o$14bobo$14b2o7$2b2o$3bo$3o13bo$o14b3o3$15b3o2$15bobo$15bobo2$15b3o3$15b3o$16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

p46

28b3o$28b3o$27bobo$27b2o9$15b2o7b2o$2o11b2o2bo6b2o$2o11b6o4bo2bo$13b4o5bob2o$22bob2o2$22bob2o$13b4o5bob2o$2o11b6o4b3ob2o$2o11b2o2bo6bobobo$15b2o7b4o$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

multiple periods

3bo$2b2o$bob2o$3o2bo$2bobobo$3bobobo$4bo2b3o$5b2obo$6b2o$6bo$13b3o$13b3o$12bobo$12b2o14$6bob2o$4b3ob2o$3bo$4b3ob2o$6bobo$6bobo$7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works with periods 4+ (click above to open LifeViewer)

4b2o$3b4o$2bob2ob2obo$7b2o2bo$2b2o2b2o2b3o$2b4obo2b3o$bo2bo3bo2bo$3o2bob4o$3o2b2o2b2o$bo2b2o$2bob2ob2obo$6b4o7b3o$7b2o8b3o$16bobo$16b2o6$9b2o$8bobo17b2o$8bo19bobo$7b2o21bo$30b2o$24b2o$24bo$25b3o$27bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works with periods 6+ (click above to open LifeViewer)

11b3o$11b3o$10bobo$10b2o5$bo6bo$o7b2o3b2o$2o5bobo3b2o$4bob3o$4b3o2$4b3o$4bob3o$2o5bobo3b2o$o7b2o3b2o$bo6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works with periods 9+ (click above to open LifeViewer)

b3o$b3o$obo$2o12$4b3o2$3bo3bo$3bo3bo2$4b3o3$4b3o2$3bo3bo$3bo3bo2$4b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works for periods 7+ (click above to open LifeViewer)

11b2o3bo$10bo2bobobo2bo$b3o6bob2obob4o$b3o5b2obo2bo$obo6bo4bobob3o$2o8bobobobo4bo$10bobobob2o2b2o$10bobob3o$10bobo4bo$9bo2bobob2o$9b2obobo$10bobo2b3o$10bobo4bo$11bo4$3b2o$3bo$4b3o$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works for periods 4+ (click above to open LifeViewer)

14b2o3bo$13bo2bobobo2bo$4b3o6bob2obob4o$4b3o5b2obo2bo$3bobo6bo4bobob3o$3b2o8bobobobo4bo$13bobobob2o2b2o$13bobob3o$13bobo4bo$12bo2bobob2o$12b2obobo$13bobo2b3o$13bobo4bo$14bo6$7b2o$3bo3b2o$2bobo$bobo$bo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works for periods 4+ (click above to open LifeViewer)

22b2o$22bo$13b3o7bo$13b3o6b2o$12bobo6bo$12b2o7b3o$24bo$23b2o2$20b2o$20bobo$22bo$22b2o2$17b2obo$17b2ob3o$23bo$17b2ob3o$18bobo$18bobo$19bo$2bo12bo$bobo10bobo$bob12obo$2obo10bob2o$o2bo10bo2bo$2bo12bo$3b3ob4ob3o$5bo6bo$3b2o3b2o3b2o$3bo3bo2bo3bo$bobo4b2o4bobo$b2o12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works for periods 5,7+ (click above to open LifeViewer)

3bo$2b2o$bob2o$3o2bo$2bobobo$3bobobo$4bo2b3o$5b2obo$6b2o$6bo$13b3o$13b3o$12bobo$12b2o14$3b2o3b2o5b2o$bo2bo3b2o3bo4bo$13bo$o5bo5bo6bo$o6bo5bo4b2o$6bo2b2o2bo$b2ob2o3b2o3bobo$3bo11bo$18b2o$5b2o6b2o3b2o$2o3b2o6b2o$2o$4bo11bo$3bobo3b2o3b2ob2o$6bo2b2o2bo$2o4bo5bo6bo$o6bo5bo5bo$6bo$bo4bo3b2o3bo2bo$3b2o5b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] top sparker works for periods 4+, bottom sparker works for periods 9,11+ (click above to open LifeViewer)

4bo$2o2b2ob3o$2o4b4o$4b2o2$15b3o$15b3o$14bobo$14b2o5$3b2o$3b2o4$7b2o$7b2o3$8b2o$6bob2o$6bo$6bo$6bo2bo5b2o$7b2o5bobo$14bo$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] topmost sparker works for periods 7+, bottom sparker works for periods 3+ (click above to open LifeViewer)

20b3o$20b3o$19bobo$19b2o3$bobo2bobo$o2bo2bo2bo$bobo2bobo5$11bob2ob2o$10b2ob2o2b2o$10bo$17b2o$10b2o5b2o$10b2o$18bo$10b2o2b2ob2o$11b2ob2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] bottom sparker and leftmost sparker both work for periods 8+ (click above to open LifeViewer)

17b3o$17b3o$16bobo$16b2o$2b2o$bobo$bo$2o2$12b2o$12b2o2$9b2o$9bo$7bobo3b4o$7b2o3bo4bo$12bo3bobo$13bo3bobo$19bo$19bo$16bo2bo$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] works for periods 4+ (click above to open LifeViewer)

U to R-pentomino

single period

p3

12b3o$12b3o$11bobo7bo$11b2o6bo3b4o$19bo3bo$19bo$22bo$2o18b2o$o$b3o$3bo$b2o$bo$2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p4

10b3o$10b3o$9bobo$9b2o9b2o$20b2o11$9b8o$7bob8obo$5b2o3b6o3b2o$2o2b3o12b3o2b2o$obob3o2bobo2bobo2b3obobo$bo6b2obo2bob2o6bo$2b3o2bob2o4b2obo2b3o$5bob2o8b2obo$4o2b2o2bo4bo2b2o2b4o$o2bobo3bobo2bobo3bobo2bo$4bo4bo6bo4bo2$8bob6obo$2o4b2ob8ob2o4b2o$obobo2b12o2bobobo$2bobob2o10b2obobo$bo8b2o2b2o8bo$b3obo4bo4bo4bob3o$5bob2obo4bob2obo$ob2obobobo6bobobob2obo$2ob2o16b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p8

34b2obo$34bob2o12bo$22bo8b2obo$21bobo2b2o3bo2bo5b2o6b3obo$8b3o10bobo3bo5b2ob2obobo5bob2o$8b3o8b2o2b2o2bob4o2bobobo7b2obo$7bobo10bobo2bobobo3bobobob2o4bob3o$7b2o11bobob2obo2b2obobo5bobo$19b2obo2bo2bobo2b4o3bobo4bo$19bo2b2o2bo4bo9bo$19b2ob2o2bobo3b9o$19b2o$19b2ob2o2bobo3b9o$19bo2b2o2bo4bo9bo$19b2obo2bo2bobo2b4o3bobo4bo$20bobob2obo2b2obobo5bobo$8b4o8bobo2bobobo3bobobob2o4bob3o$7b6o6b2o2b2o2bob4o2bobobo7b2obo$7b6o8bobo3bo5b2ob2obobo5bob2o$21bobo2b2o3bo2bo5b2o6b3obo$8b4o10bo8b2obo$7b6o21bob2o12bo$7bo4bo21b2obo$8b4o$9b2o$3b2o10b2o$3bobo2bo2bo2bobo$bobob4o2b4obobo$b2obobob4obobob2o$4bob2o4b2obo$b2obo2b2o2b2o2bob2o$obobo3bo2bo3bobobo$obobo10bobobo$bo2bob2o4b2obo2bo$2b2o12b2o$4b2o8b2o$4bo10bo$b2obo10bob2o$b2obob8obob2o$4bobob4obobo$b2obo2bob2obo2bob2o$b2obo10bob2o$4bo10bo$4b3o6b3o$2b2o2bo6bo2b2o$bo2bo10bo2bo$obobo3bo2bo3bobobo$obob3o6b3obobo$b2obobo6bobob2o$4bobo6bobo$b2ob3o6b3ob2o$bobo5b2o5bobo$3bo5b2o5bo$3b2o10b2o$9b2o$9b2o$8bo2bo$8bo2bo$8bo2bo$6b8o$7bo4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] found by Daniel Vargas (click above to open LifeViewer)

p12

5b3o$5b3o$4bobo$4b2o10$6b2o$5bobo$5b3o$4bo$3bob4o$b2obo4bo$obobob2obob3o$3obob2obobobo$4bo4bob2o$5b4obo$9bo$6b3o$6bobo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

10b3o$10b3o$9bobo$9b2o10$2b2o8b2o$2bo2b6o2bo$3b2o6b2o$3o10b3o$o2bobo4bobo2bo$b2o4b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 4+ (click above to open LifeViewer)

12b3o$12b3o$11bobo$11b2o4$27b2o$2b2o23bobo$bobo25bo$bo27b2o$2o10b2o6b2o$10bo4bo4bo$10bo4bo5b3o$10bo4bo7bo$11bo2bo$9bobo2bobo$9b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5,6,9+ (click above to open LifeViewer)

b3o$b3o$obo$2o4$5b2o$b2o2b2o$b2o2bob2o$6b3o3$6b2o$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+ (click above to open LifeViewer)

11b3o$11b3o$10bobo$10b2o6$11b2o$9bo4bo2$9bo4bo$9bo4bo$9b2o2b2o$8bobo2b obo$5bo3b2o2b2o3bo$4bo2b2o2b2o2b2o2bo$4b3o4b2o4b3o$7bo8bo$2b4ob2o6b2o b4o$2bo2bobob2o2b2obobo2bo$3bo16bo$3o5bo6bo5b3o$o2b3o2bo2b2o2bo2b3o2b o$2bo2bo2bo6bo2bo2bo$3bo4bob4obo4bo$3o5bo6bo5b3o$o5bo2b6o2bo5bo$5b4ob o2bob4o2$4bob4ob2ob4obo$2b3obo2b2o2b2o2bob3o$bo5b2o6b2o5bo$2bob2obo8b ob2obo$3b2o2bob2o2b2obo2b2o$6bob3o2b3obo$3b2obo4b2o4bob2o$2bo2bobob6o bobo2bo$2b2obobo3b2o3bobob2o$5bo3b6o3bo$5b2o2b2o2b2o2b2o$3b2o14b2o$4b ob2ob2o2b2ob2obo$4bob2ob6ob2obo$b2obob2o3b2o3b2obob2o$2bobobo10bobobo $2bobob2obo4bob2obobo$3bobo4bo2bo4bobo$5bo2b8o2bo$5bobobo4bobobo$4b2o 2bo6bo2b2o$3bo2b2ob2o2b2ob2o2bo$3b3obobo4bobob3o$6bo10bo$3b2o2bobo4bo bo2b2o$3bo16bo$bobo3bo8bo3bobo$b2o4b3o4b3o4b2o$9b2o2b2o2$4b2obo2bo2bo 2bob2o$4bo14bo$5b4obo2bob4o$2b3o5b4o5b3o$bo2bob4o4b4obo2bo$b2obobo2bo b2obo2bobob2o$4bo3b2ob2ob2o3bo$4bo2b2o6b2o2bo$b2obob3ob4ob3obob2o$b2o bob2o3b2o3b2obob2o$4bo5b4o5bo$4b2o2bo6bo2b2o$5bo2bo6bo2bo$2b3o14b3o$2b o2b3o3b2o3b3o2bo$3b2o4bo4bo4b2o$5b2ob2o4b2ob2o$5bo3bo4bo3bo$6b4o4b4o$ 3b3o4b4o4b3o$3bo2bo2b6o2bo2bo$6bobo6bobo$7bobo4bobo$10bo2bo$5b5ob2ob5o $4bo4b2o2b2o4bo$4b2o2bo6bo2b2o2$8bo6bo$7bobo4bobo$10bo2bo$7bo2bo2bo2b o2$7bo8bo$6bo2b2o2b2o2bo$6bo3bo2bo3bo$4bobobo6bobobo$3bobobob6obobobo $4bo2bo3b2o3bo2bo$5b2ob2o4b2ob2o$6bo2bo4bo2bo$5bo2bob4obo2bo$5b2obobo 2bobob2o$8bobo2bobo$3b4obob4obob4o$3bo2bob2o4b2obo2bo2$7b2obo2bob2o$9b 6o2$9b6o$7b2obo2bob2o2$3bo2bob2o4b2obo2bo$3b4obob4obob4o$8bobo2bobo$5b 2obobo2bobob2o$5bo2bob4obo2bo$6bo2bo4bo2bo$5b2ob2o4b2ob2o$7bo3b2o3bo$7bob6obo$8bo6bo$10bo2bo$8bob4obo$7bobo4bobo$7bo2bo2bo2bo$8b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+ (click above to open LifeViewer)

b3o$b3o6bo$obo5b2o$2o8b2o$9bo3$8b2o$8bobo$10bo$10b2o2$5b2obo$5b2ob3o$11bo$5b2ob3o$6bobo$6bobo$7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 2+ (click above to open LifeViewer)

3b2o$4bo$3bo$3b2o$5bo6b3o$3b3o6b3o$2bo8bobo$2b2o7b2o10$5bo2b2obob2o2bo$5b4ob3ob4o$3b2o5bobo5b2o$2bo3b4o3b4o3bo$3b3o11b3o$5bo2bo5bo2bo$6b2o7b2o$3bo5bo3bo5bo$3b5obo3bob5o$8b2o3b2o$5b2o9b2o$5bo11bo$2b2obobo2bobo2bobob2o$2bo2bob2obobob2obo2bo$4bobo3bobo3bobo$5o5bobo5b5o$o4b4obobob4o4bo$bo2bo2bob2ob2obo2bo2bo$2o2b4o2bobo2b4o2b2o$7bo2bobo2bo$4b3o3bobo3b3o$3bo2bobobobobobo2bo$3b2o2bobo3bobo2b2o$8bo5bo3$5b3o7b3o$8bo5bo$4bo3bo5bo3bo$3bobo2bo5bo2bobo$bo2bobo9bobo2bo$bo3bo11bo3bo$bo19bo$2b3o13b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 6+, excluding 9 and 10 (click above to open LifeViewer)

12b3o$12b3o$2o9bobo$o10b2o$b3o$3bo$b2o$bo$2bo$b2o3$12b3o$11bo2b2obo$12bo5bo$8bo4b2o3bo$7bobo4b4o$8bo3$12b3o$12b3o$12b3o$9b3o$9b3o$9b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 10+ (click above to open LifeViewer)

bo2bob2obo2bo$2o2bo4bo2b2o$bo2bob2obo2bo8b3o$21b3o$20bobo$20b2o$4b2o2b2o$2b2o6b2o$2b2o6b2o$2bo2bo2bo2bo$3b2o4b2o8$16b2o$17bo$14b3o$14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 10+ (click above to open LifeViewer)

U to Pi-heptomino

single-period

p6

2b2o$b4o$obo2bo$2o2bobo$5bobo5b3o$7b2o4b3o$6b3o3bobo$5bobo4b2o$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p7

100b2o2b2o$58b2o2b2o6b2o11bo11bo5bo3bo$53b2o3b2o2bobo5bo10b3o5b2o3bob o4bobobob2o$13b2o7b2o6bo16b2o3bobo9bo6b3ob2o3bo5bo2bobobo2bo5bobobobo $13bo9bo5bobo9b2o5bo3bobob9ob2o5bobobo3b6o4bob2ob2o6bo3bob2o$8bob2obo 9bob2obobo10bobo4bob2obobo9bobo7bob4o2bo3b4o3bo4b2o2b2o2b2obo$8b2obob 2o7b2obob2o2b3o9bo2b2obobobobob2o3b2obo8bo6bo3bobo3b2o3b2o12bo$b2o3b2o 7bo5bo7b2o2bo4bo3b2obobobo2bo4bobo3bob2o4bob3o3b3o2b2o3b2o2b3obobo4b2o b2o3b3o$o2bobo2b2ob7ob7ob2o2b2o4bobo2bo2bobobob2o5b2o3bo2b2o6bo2bob5o 4bo2bo5bo3bo4bo6b3o$obo3bobo19bobo2bo2bo2bo2b2obo2b2o9b2ob2o2bobob2o3b obo5b7o3b3obo3bo2bob4obo3bo$bob3o2bob3o3b2ob2o3b3obo2b3o3b2o2b2obobob 2o2bo3b2obobo4b3obo4bob2o15bo5b2obo3bo3b4o$3bo4bo8bobo8bo12bo7bobo4b2o 2b3obo4bo6bo2bo15bo4bob2o7b4o$3bo4bo8bobo8bo12bo7bobo4b2o2b3obo4bo6bo 2bo15bo4bob2o7b4o10b3o$bob3o2bob3o3b2ob2o3b3obo2b3o3b2o2b2obobob2o2bo 3b2obobo4b3obo4bob2o15bo5b2obo3bo3b4o10b3o$obo3bobo19bobo2bo2bo2bo2b2o bo2b2o9b2ob2o2bobob2o3bobo5b7o3b3obo3bo2bob4obo3bo8bobo$o2bobo2b2ob7o b7ob2o2b2o4bobo2bo2bobobob2o5b2o3bo2b2o6bo2bob5o4bo2bo5bo3bo4bo6b3o8b 2o$b2o3b2o7bo5bo7b2o2bo4bo3b2obobobo2bo4bobo3bob2o4bob3o3b3o2b2o3b2o2b 3obobo4b2ob2o3b3o$8b2obob2o7b2obob2o2b3o9bo2b2obobobobob2o3b2obo8bo6b o3bobo3b2o3b2o12bo$8bob2obo9bob2obobo10bobo4bob2obobo9bobo7bob4o2bo3b 4o3bo4b2o2b2o2b2obo$13bo9bo5bobo9b2o5bo3bobob9ob2o5bobobo3b6o4bob2ob2o 6bo3bob2o$13b2o7b2o6bo16b2o3bobo9bo6b3ob2o3bo5bo2bobobo2bo5bobobobo$53b2o3b2o2bobo5bo10b3o5b2o3bobo4bobobob2o$58b2o2b2o6b2o11bo11bo5bo3bo$100b2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

16b3o$16b3o$15bobo$15b2o3$5b2o$5b2o2$24b2o$5bob2o15bobo$2o2bobo19bo$2o3bo20b2o$4bo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 4+ (click above to open LifeViewer)

5$16b2o3bo$5b3o7bo2bobobo2bo$5b3o7bob2obob4o$4bobo7b2o4bo$4b2o8bo2bobob5o$15bobobobobo2bo$16bo2bo2bo2b2o$15bobob2o$16b2obo2bo$14bo2bob4o$14b2obobo$15bobo2b3o$15bobo4bo$11b2o3bo$7b2o2b2o$7b2o2bob2o$12b3o3$12b2o$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 4+ (click above to open LifeViewer)

9b3o$9b3o$8bobo$8b2o9$6b2ob2ob2o$6bo2b2o2bo2$7b6o$8bo2bo$8bo2bo$9b2o$3b2o10b2o$3bo5b2o5bo$bobobo3b2o3bobobo$b2obobo6bobob2o$4bob2o4b2obo$b2obob2o4b2obob2o$obobob2o4b2obobobo$obobo10bobobo$bo2b2o8b2o2bo$2b2o2bo6bo2b2o$4bobo6bobo$4bo10bo$b2ob2o8b2ob2o$2bobo2bo4bo2bobo$2bobobo6bobobo$b2obobo6bobob2o$2bobo2b6o2bobo$2bobo10bobo$b2ob2o8b2ob2o$4bob3o2b3obo$4bobob4obobo$5b2o6b2o$8b4o$3b4obo2bob4o$3bo2b2o4b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 7+ (click above to open LifeViewer)

17b2o$6bo2bo2bo3bo2bob2o$6b7o2bob3obo$2o13bo6b3o$bo2b11ob6o2bo$bobo4bo5bobobo4bo$2obobo4b2o3bo3b2o$o5bo2bo2bo4b2o8b5obo$b2ob2o6bo5b2o3bob2o$2bobo7bo8bo2bo9bo5b3o$2bobo7bo8bo2bo9bo5b3o$b2ob2o6bo5b2o3bob2o12bobo$o5bo2bo2bo4b2o8b5obo5b2o$2obobo4b2o3bo3b2o$bobo4bo5bobobo4bo$bo2b11ob6o2bo$2o13bo6b3o$6b7o2bob3obo$6bo2bo2bo3bo2bob2o$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 7+ (click above to open LifeViewer)

b3o$b3o$obo$2o8$5b2o$4bobo$3bobo$4bo$11bo3bo$9b2obobob2o$8bo3bobo3bo$7bo3b2ob2o3bo$7bobo7bobo$8bo9bo2$11b2ob2o$10bobobobo$11bo3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+ (click above to open LifeViewer)

4bo$2o2b2ob3o$2o4b4o$4b2o$15b3o$15b3o$3b2o9bobo$3bo10b2o$4b3o$6bo$4b2o$4bo$5bo$4b2o4$8b2o$4b2o2b2o2b2o$4bobo2bo2b2o$5b3o$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] topmost sparker works with periods 5+, bottommost works with periods 3+ (click above to open LifeViewer)

26b2o$26bo$24bobo$24b2o$28b2o$14b3o11bo$14b3o9bobo$bo11bobo10b2o$2o11b2o$2o$o6$6b2o$5bobo$5bo$4b2o4b2o10b2o$10b2o6bo3b2o$17bobo$16bobo$16bo$15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 2+ (click above to open LifeViewer)

U to Herschel

single period

p7

27b3o$14bo12b3o$10b2obobo10bobo$10b2obobo10b2o$3b2o8bob2o$4bo5b4o3bo$3bo5bo4bob2o$3b2o4b2ob2o3bo$b2o3bo2b2o4b2o$o2bob2o2b3obobo$bobo2bobo2bo3bo$2o2bobob4ob2o$2bob2obo4bo$2bo4bob2obo13bo$b2o4b2ob2o15bo2b2o$27b2ob2o$26b2o$26bo$23b2o2b3o$24bobob2o$25b2obobo$25b3o2b2o$28bo$27b2o$23b2ob2o$23b2o2bo$28bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p8

14bob2o$14b2obo$2o15bob2o8bo$2obo6b2o5bo2bo3b2o2bobo$4bo5bobob2ob2o5bo3bobo$bo10bobobo2b4obo2b2o2b2o7b3o$2bob2o5b2o3bobo3bobobo2bobo8b3o$4b2o3b2obo5bob2o2bob2obobo7bobo$9bobo3b2obo2b2obobo2bob2o6b2o$10bo2bo6bobo2b3o5bo$11b9o4bo3b2o3bo$33bo$11b9o4bo3b2o3bo$10bo2bo6bobo2b3o5bo$9bobo3b2obo2b2obobo2bob2o$4b2o3b2obo5bob2o2bob2obobo$2bob2o5b2o3bobo3bobobo2bobo$bo10bobobo2b4obo2b2o2b2o3b2o$4bo5bobob2ob2o5bo3bobo6bo$2obo6b2o5bo2bo3b2o2bobo3b3o$2o15bob2o8bo4bo$14b2obo$14bob2o5$48b2o$43b2o3b2o$43b2o3$42b2o$43bo4b2o$40b3o5b2o$40bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

p15

9b2o$10bo$10bobo8b3o$11b2o8b3o$20bobo$20b2o3$2o3bo2bo3b2o$5o4b5o$2o3bo2bo3b2o7$17b2o$15b2o2b2o$15bo4bo$16bo2bo$14bobo2bobo$14b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

19b3o$19b3o$18bobo$18b2o2$8o$ob4obo$8o5$23b2obo$23b2ob3o$15bo13bo$14bobo6b2ob3o$24bobo$24bobo$14b3o8bo$14b3o$15bo3$15bo$14b3o$14b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

2o$obo$2bo$2b2o$4bo6b3o22b2o$2b3o6b3o21bobo$bo8bobo22bo$b2o7b2o21b2ob4o$34bobo2bo$33bo2bo$32b4o$35bo$5bo$4bobo$5bo$o$3o$3bo$2bobo$3bo3$4b2o$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+. found by Daniel Vargas (click above to open LifeViewer)

b3o$b3o$obo$2o5$5bo3b2o$3b2obo$3b3o$2bo6bo$bo2bobobobo$2b3obob2o2$2b3obob2o$bo2bobobobo$2bo6bo$3b3o$3b2obo$5bo3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+ (click above to open LifeViewer)

b2o$2bo$bo$b2o$3bo6b3o$b3o6b3o$o8bobo$2o7b2o4$27b2o$4bo22b2obo$3bobo25bo$4bo23bo$29bob2o$31b2o3$6b2o$5bobo$5bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 4+ excluding 6,9,18, and 19 (click above to open LifeViewer)

U to Century

single period

p8

14bob2o$14b2obo$2o15bob2o8bo$2obo6b2o5bo2bo3b2o2bobo$4bo5bobob2ob2o5bo3bobo$bo10bobobo2b4obo2b2o2b2o7b3o$2bob2o5b2o3bobo3bobobo2bobo8b3o$4b2o3b2obo5bob2o2bob2obobo7bobo$9bobo3b2obo2b2obobo2bob2o6b2o$10bo2bo6bobo2b3o5bo$11b9o4bo3b2o3bo$33bo$11b9o4bo3b2o3bo$10bo2bo6bobo2b3o5bo$9bobo3b2obo2b2obobo2bob2o$4b2o3b2obo5bob2o2bob2obobo$2bob2o5b2o3bobo3bobobo2bobo$bo10bobobo2b4obo2b2o2b2o5b2o$4bo5bobob2ob2o5bo3bobo7b2o$2obo6b2o5bo2bo3b2o2bobo$2o15bob2o8bo$14b2obo$14bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

28b2o3bo$27bo2bobobo2bo$27bob2obob4o$17b3o6b2obo2bo$17b3o5bo2bob2ob5o$16bobo6bo2bo2bobobo2bo$16b2o7bo5bo2bo2b2o$25bo3bob2o$25bo3bobo2bo$25bo3bob4o$26b2obobo$27bobo2b3o$27bobo4bo$28bo10$2b2o$3bo$3o$o5b6o$5bo6bo$3b3o6b3o$2bo7b2o3bo$3b6o3b2obo$11bob2o$5b7o$4bobobo3b3o$4bobo3b2o3bo$3b2ob2obobob2o$10b2obo$11bobo$9bobob2o$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 6+ (click above to open LifeViewer)

b3o$b3o$obo$2o7$11b2o$10bo2bo$11bo2bo$7bo6bo$6bobo3bo2bo$7b2o3b3o2$7b2o3b3o$6bobo3bo2bo$7bo6bo$11bo2bo$10bo2bo$11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+ (click above to open LifeViewer)

U to Dove

single-period

p46

b3o$b3o$obo$2o14$13b2o$13b2o12$7bo5bo$6b3o3b3o$5bo3bobo3bo$5bo9bo$6b3o3b3o5$8b2ob2o$9bobo$5b2ob2ob2ob2o$5bo2bo3bo2bo$5bo9bo$5bo2bo3bo2bo$6b2o5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

15b2o$14bo2bo$2o12bob2o$13b2o$bo2b2o6bo3b2o$2b3o8b4obo$3bo8bo6bo$13b7o $13bo2bo3b2o$13bo5bo2bo$13b3obo2bobo$13b3ob2obob2o$14bobo3bobo$17bo2bo bo2b2o$18bo3bobo2bo$22bob2obo$20bo3bo2b2o$20b4o2bo2bo6b2o$21bo5b2o2bo 3bo2bob2o$21bo2b3o2b3o2bob2o3b3o$22bo3bobo5bo3b2o4bo$23b2o5b4obobo2b4o $25bo3bo5bobobo2bo$29b4o2bo6bo5b2o$29bo5b2obo2b2o3bo2bo$35bo2bo4bo2b2o $33bobobob4obobo$32bob2obo5bo2bo$32bo5b3o2bobo$31b2o7bo3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 7,15+. found by Luka Okanishi (click above to open LifeViewer)

U to Wing

single-period

p15

20b3o7b2o$20b3o7bo$19bobo6bobo$3b4o12b2o7b2o$2b6o$b8o$2o6b2o$b8o$2b6o$3b4o2$12b2o$13bo$10b3o$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

b3o$b3o$obo$2o8$3b2o$2b4o$bobo2bo$b2o2bobo$6bobo$8b2o$7b3o$6bobo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 3+ (click above to open LifeViewer)

2o$bo21b2o3bo$bobo8b3o7bo2bobobo2bo$2b2o8b3o7bob2obob4o$11bobo7b2o4bo$11b2o8bo2bobob5o$22bobobobobo2bo$23bo2bo2bo2b2o$22bobob2o$23b2obo2bo$21bo2bob4o$21b2obobo$22bobo2b3o$22bobo4bo$23bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 6+ (click above to open LifeViewer)

2b3o$2b3o$bobo$b2o2$11b2o6b2o$10bo2bo4bo2bo$9b6o2b6o$10bo2bo4bo2bo$11b2o6b2o8$3b3o$2bo3bo$bo5bo2$o7bo$o7bo2$bo5bo$2bo3bo$3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] sparker on the right has to be p15, sparker on the bottom just deletes junk. (click above to open LifeViewer)

10b2o$9bo2bo$10bobo$8b2obo$8b3o6b3o$8b2o7b3o$16bobo$16b2o4$2o4b2o$3o2b3o$2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] topmost sparker works for periods 4+, other sparker works for periods 7+. (click above to open LifeViewer)

U to I-heptomino

single-period

p8

17b2o$6bo2bo2bo3bo2bob2o$6b7o2bob3obo$2o13bo6b3o$bo2b11ob2ob3o2bo$bob o2bo7bobobo2bo7bo12b3o$2ob2o4b3o3b3o2bo9bo11b3o$o2bo5bo3bo3bo2bo10bo9b obo$b2ob2o4bo6b5o2bo5bo10b2o$2bobo5bo3bo3bobobo3b4o$2bobo5bo3bo3bobob o3b4o$b2ob2o4bo6b5o2bo5bo$o2bo5bo3bo3bo2bo10bo$2ob2o4b3o3b3o2bo9bo$bo bo2bo7bobobo2bo7bo$bo2b11ob2ob3o2bo$2o13bo6b3o$6b7o2bob3obo$6bo2bo2bo3bo2bob2o$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] (click above to open LifeViewer)

multiple periods

10bo$8b3o$7bo$7b2o2$2bo$bobo$o4b2o$bo5bo$3b2o2bo$4bob2o6$4b2obo$4bo2b2o$4bo5bo6b3o$5b2o4bo5b3o$8bobo5bobo$9bo6b2o2$3b2o$4bo$b3o$bo6$13b2o$14bo$11b3o$11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 22+ (click above to open LifeViewer)

U to Octomino II

multiple periods

b3o$b3o$obo$2o10$8b2o$8bob2o$9bo2bo$4bo4bo2bo$3bobo3bo2bo$4b2o3b3o2$4b2o3b3o$3bobo3bo2bo$4bo4bo2bo$9bo2bo$8bob2o$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 5+ (click above to open LifeViewer)

U to Stairstep hexomino

multiple periods

14b2o$13bo$2o10bo2b2o10b2o$2o10bo2bo11b2o$12bobo$13b2o2$13b2o9b2o$12bobo7b2o3bo10b3o$2o10bo2bo6bo4bo10b3o$2o10bo2b2o5b2o3bo9bobo$13bo10b2o11b2o$14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

works with periods 12+ (click above to open LifeViewer)

U to two-glider octomino

multiple periods

23b3o$2b2o6b2o11b3o$bo2bo4bo2bo9bobo$6o2b6o8b2o$bo2bo4bo2bo$2b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

works with periods 13,26, and whatever can suppress a blinker (click above to open LifeViewer)

U to Blonk-tie

multiple periods

b3o$b3o$obo$2o4$9bo4bo$7b2ob4ob2o$9bo4bo2$3bo$3bo$2b3o3$2b3o$3bo$3bo$3bo$3bo$2b3o3$2b3o$3bo$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 7+ (click above to open LifeViewer)

2bo$bobo$o3bo13b3o$bo3bo12b3o$2bo3bo10bobo7bo$3bo3bo9b2o6bo3b4o$4bobo18bo3bo$5bo19bo$28bo$26b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] works with periods 3n, n≥3 (click above to open LifeViewer)

U to E-heptomino

single-period

17b2o$6bo2bo2bo3bo2bob2o$6b7o2bob3obo$2o13bo6b3o$bo2b11obob4o2bo$bobo 4bo5bobo4bo$2o2bo4b3o3b2o2bo8b3o$o2bo2bo3bobo4bo2bo5b5o$b2ob2o5b3o3b3o 4b7o$2bobo6b3o6bob3o16b3o$2bobo6b3o6bob3o16b3o$b2ob2o5b3o3b3o4b7o9bob o$o2bo2bo3bobo4bo2bo5b5o9b2o6bo$2o2bo4b3o3b2o2bo8b3o16bobo$bobo4bo5bo bo4bo26bo$bo2b11obob4o2bo$2o13bo6b3o$6b7o2bob3obo7bo$6bo2bo2bo3bo2bob2o6b3o$17b2o13bo$31b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

p8 U to E (click above to open LifeViewer)

U to MWSS

multiple periods

2o4bo2bo$2o4bo2bo$5bo$6b2ob3o$5bobobob2o$5bobobo2bo$4bo3b2o2bo$4bo2b2o3bo$4bo2bobobo$4b2obobobo$5b3ob2o$11bo$7bo2bo4b2o$7bo2bo4b2o2$21b3o$21b3o$20bobo$20b2o3$o2bob2obo2bo$4ob2ob4o$o2bob2obo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

topmost sparker works for periods 6+, v-sparker works for periods 9+ (click above to open LifeViewer)

U-turner as output (periodic)

R to U

7b2o$8b2o$8bo2$6bo$4bo3bo2$3bo5bo$b3ob3ob3o$o3b2ob2o3bo$ob3obob4o$bo$3bobobob2obo$2b2ob3obob2o$3bobo2bo$3bo2b2o$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p5 R to U (click above to open LifeViewer)

9bo$7b3o$6bo$6b2o2$13bobobo$2o7b2o4bo2bo$b2o6b2o2bo3b2o$bo7b2ob2o$10bobo$10b3o$8bob2o$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p6 R to U (click above to open LifeViewer)

H to U

18b2o2bobo$17b3obo3bo12b2o$3o13b2o6bo13b2o$bo15bob5o$b3o14b3o2$18b3o$17bob5o$11b2o3b2o6bo13b2o$11b2o4b3obo3bo12b2o$18b2o2bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p46 H to U (click above to open LifeViewer)

2b2o6b2o$bo2bo4bo2bo$6o2b6o$bo2bo4bo2bo$2b2o6b2o$19b2o$16b2o2bo$15b2ob2o$9bo5b2o$8bo6b2o$10bo4b2ob2o$7bo3bo4b2o2bo$7b3o9b2o9$6bo$4bobo$4b3o$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p30 version (click above to open LifeViewer)

14b6o$13bo6bo$12bo8bo$13bo6bo$14b6o10$3o7b2o$bo8bobo$b3o8bo$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p15 H to U (click above to open LifeViewer)

15bo$14bobo$14bobo2bo$13b2obobobo$12bo2bobobobo$11b3obobo3bo$11bo5bobobobo$10b3obo4b2obobo$9b2o3bo7bobo$9b3o3bo2b3obob2o$9b2o3bo7bobo$10b3obo4b2obobo$11bo5bobobobo$11b3obobo3bo$12bo2bobobobo$13b2obobobo$14bobo2bo$14bobo$15bo5$3o7b2o$bo8bobo$b3o8bo$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p6 version (click above to open LifeViewer)

13b2o2b2o$12bo2bo2bo$12bob2obo8bo$11b2o2bob4o3b3o$10bo2bobo5bobo$9b3ob5obobobo2b3o$9b2o6bo3bobobo3bo$9b3o3bo4bo3b2o3bo$10b2o3bob2o5bobobo$13b2obo2b6obo$13bo2b3o6bo2bo$14b2o3bo2b2obob2o$15bo2bo3bo2bo$15bobo6b2o$16bo6$3o7b2o$bo8bobo$b3o8bo$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p4 version (click above to open LifeViewer)

found by TigerCub414 on the forums

23bo$22bobo$22bobo$20b3ob2o$2o17bo$2o18b3ob2o$22bob2o2$bobo$b2o2bo$2bo$3b3o3$4b2o$4b2o3b2o$9b2o8$4b2o$3bobo$3bo$2b2o21b3o5$12b3o$13bo$13b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p8 H to U (click above to open LifeViewer)

Found as partial by TigerCub414, completed by Lucy D'Agostino

x = 41, y = 34, rule = B3/S23 5b3o20b2o$6b3o18bobo$15bo11b2o$15bo15b2o$15bo15bobo$6b3o24bo$5b3o25b3o $36bo$35b2o2$7bo27b4o$bo5bo27bo2bo$b2o4bo29bo$b2o35b3o$2bo37bo$35b2o$ 35bobo$37bo$37b2o4$o27b2o$obo25bobo$3o27bo$2bo27b2o$20b2o$21bo$18b3o$ 18bo$19b2o$7b2o11bo$7b2o2b2o6bo$11b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] p2 H to U (click above to open LifeViewer)

Pi to U

6b2o$5bo2bo$o2bo2bobo$5obob2o$6b2o2bo$2bob2o3b3o$bobob2o2b3o$bo2b2o3b3o$2bo3b2o2bo9b3o$3b2obob2o10bobo$4bobobo11bobo$3bo2bobo$3b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

Miscellaneous conduits/converters

10b2o$10bo$8b3o3$b2o$2bo$bo$b2o$3bo$b3o13bo$o15b2o$2o8b2o3b2o$10b2o4b o$17bo3$4bo$3bobo$4bo6$8bo4bo$7bobo2bobo$6bo3b2o3bo$10b2o$10b2o$10b2o 2$4b2o3bo2bo3b2o$4bo12bo$2bobo5b2o5bobo$2b2ob2o2bo2bo2b2ob2o$5bob8obo $2b2obo3bo2bo3bob2o$bobo2bo2b4o2bo2bobo$bobobob3o2b3obobobo$2bo2b3o6b 3o2bo$3b2o2bo6bo2b2o$5b2o3b2o3b2o$5bo2bo4bo2bo$2b2obo10bob2o$3bobobo6b obobo$3bobobob4obobobo$2b2obob2o4b2obob2o$3bobo10bobo$3bobo10bobo$2b2o b2o8b2ob2o$5bo3bo2bo3bo$5bobob4obobo$6b3o4b3o$9b4o$4b4obo2bob4o$4bo2b 2o4b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

p8 BL98H (click above to open LifeViewer)

27b3o$14bo12b3o$10b2obobo10bobo$10b2obobo10b2o$3b2o8bob2o$4bo5b4o3bo$3bo5bo4bob2o$3b2o4b2ob2o3bo$b2o3bo2b2o4b2o$o2bob2o2b3obobo$bobo2bobo2bo3bo$2o2bobob4ob2o$2bob2obo4bo$2bo4bob2obo$b2o4b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

p7 U-turner to R-turner (click above to open LifeViewer)

14bob2o$14b2obo$2o15bob2o8bo$2obo6b2o5bo2bo3b2o2bobo$4bo5bobob2ob2o5b o3bobo$bo10bobobo2b4obo2b2o2b2o7b3o$2bob2o5b2o3bobo3bobobo2bobo8b3o$4b 2o3b2obo5bob2o2bob2obobo7bobo$9bobo3b2obo2b2obobo2bob2o6b2o$10bo2bo6b obo2b3o5bo$11b9o4bo3b2o3bo$33bo$11b9o4bo3b2o3bo$10bo2bo6bobo2b3o5bo$9b obo3b2obo2b2obobo2bob2o$4b2o3b2obo5bob2o2bob2obobo$2bob2o5b2o3bobo3bo bobo2bobo$bo10bobobo2b4obo2b2o2b2o$4bo5bobob2ob2o5bo3bobo7bobo$2obo6b 2o5bo2bo3b2o2bobo6bob2o$2o15bob2o8bo7bo$14b2obo18b2o$14bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

p8 U to H' (click above to open LifeViewer)

Transparent reactions

for U-turner+still life interactions where the still life in question shows a transparent debris effect.

Transparent blocks

6b3o$6b3o$5bobo$5b2o7$6b2o$6b2o$2b2o$3bo$3o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 26 ]] Transparent block 1 (click above to open LifeViewer)

9b2o2$10bo2b2o$11b3o$12bo2$19bo$18bobo$2o17bo$2o5$16b2o$12bo3b2o$11bobo$10bobo$10bo$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 154 ]] Transparent block 2 (click above to open LifeViewer)

b2o$2bo$bo$b2o$3bo6b3o$b3o6b3o$o8bobo$2o7b2o5$4bo$3bobo$4bo$22b2o$22b2o3$6b2o$5bobo$5bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 52 ]] Transparent block 3 (click above to open LifeViewer)

4b3o$4b3o$3bobo$3b2o8$b2o$b2o3b2o$6bobo$8bo$obo5b2o$2obo$3bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 30 ]] Transparent block 4 (click above to open LifeViewer)

12b3o$12b3o$11bobo$11b2o2$3b2o$3b2o2$2o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 36 ]] Transparent block 5 (click above to open LifeViewer)

5b3o$5b3o$4bobo$4b2o11$2b2o$3bo5b2o$3o6b2o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 53 ]] Transparent block 6 (click above to open LifeViewer)

15b3o$15b3o$14bobo$14b2o4$2o4b2o$2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 63 ]] Transparent block 7 (click above to open LifeViewer)

Transparent beehives

9bo$8bobo$8bobo$9bo8$b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 122 ]] Transparent beehive 1 (click above to open LifeViewer)

5b2o$4bo2bo$5b2o6b2o$13b2o9$b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 118 ]] Transparent beehive 2 (click above to open LifeViewer)

b3o$b3o$obo$2o10$5b2o$4bo2bo$5b2o$10b2o$8bo2bo$8b3o$5bo$5b4o$8bo$7bo$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 47 ]] Transparent beehive 3 (click above to open LifeViewer)

18b3o$bo16b3o$obo4bo9bobo$bo4bobo8b2o$6bobo$7bo$27b2o$27bo$25bobo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STOP 111 ]] Transparent beehive 4 (click above to open LifeViewer)

U-turner to still life converters

Block

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o$6bo$3b3o$3bo$13b2o$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o8$9b2o$9b2o3b2o$14bobo$16bo$8bobo5b2o$8b2obo$11bo$11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

5b3o$5b3o$4bobo$4b2o7$22b2o$22bobo$24bo$16b2o6b2o$2b2o12b2o$3bo5b2o$3o6b2o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o2$21b2o$21bo$19bobo$19b2o2$5b2o$6bo$3b3o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

Beehive

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o$6bo$3b3o$3bo3$16b2o$16bo$17b3o$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o7$5b2o$6bo$3b3o$3bo$16b2o$16bo$17b3o$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

Boat

18b2o$18b2o5$16b3o$2o14b3o$bo13bobo$bobo11b2o$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

20b3o$20b3o$19bobo$19b2o2$11b2o$2b2o7b2o$3bo$3o5b2o$o7b2o18b2o$28bobo$30bo$30b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

Loaf

5b2o$6bo$6bobo8b3o$7b2o8b3o$16bobo$16b2o6$9b2o$4b2o2bo2bo$bo2bo4bobo$obobo5bo$bo2bob2o$4bo2bo10b2o$5bo4bo7b2o$6b5o2$8bo$7bobo$8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

Tub

2o$bo$bobo8b3o$2b2o8b3o$11bobo$11b2o2$23b2o$23bo$21bobo$21b2o2$5b2o$6bo$3b3o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

Ship

b3o$b3o$obo$2o14b2o$16b2o10$9b2o$5bo3b2o$4bobo$3bobo$3bo$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

Predecessors

Like all patterns in Conway's Game of Life (except for Gardens of Eden), the U-turner has many predecessors. obviously, not all of them can be listed, so here are some of the more useful or notable ones.

Still life+methuselah reactions that make U-turners

Reactions are grouped by the still life involved

Block

7bo$6b2o$2o3b2o$2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] B and block (click above to open LifeViewer)

5b2ob2o$2o3bo2bo$2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] traffic light predecessor and block (click above to open LifeViewer)

3o$bobo$3bo$ob2o3b2o$2o5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] e9jp and block (click above to open LifeViewer)

Beehive

2o2bo$b3o$2bo$6bo$5bobo$5bobo$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] B and beehive (click above to open LifeViewer)

Boat

2obo$b3o$2bo3$bo$obo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] B and boat (click above to open LifeViewer)

2bo$3o$obo$o2$3bo$2bobo$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] H and boat (click above to open LifeViewer)

Blinker and blinker constellations

4bo$4bo$4bo8$3o$2bo$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] Pi and blinker (click above to open LifeViewer)

4b2o$3bo2bo$3bo2bo$4b3o5$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] teardrop and blinker (click above to open LifeViewer)

b2o$o2bo$b3o2$5bo$5bo$5bo2$b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]] R-bee and half of a traffic light (click above to open LifeViewer)

Other predecessors

The U-turner has one six-cell predecessor:

x = 3, y = 6, rule = B3/S23 2bo$2o2$o$o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 THUMBSIZE 2 ]]

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

It has a 33-generation predecessor with 8 cells:

x = 5, y = 4, rule = B3/S23 2b2o$bo2bo$o2bo$o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 THUMBSIZE 2 STOP 33 ]]

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

there is also a 10-cell pattern that can appear that converges to the U-turner in 1 generation.

3o$3o$2o$o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 ]]

(click above to open LifeViewer)

Sometimes, a block will become a U-turner when it eats something but doesn't recover:

4bobo$2obo2bo$2o2bo$6bo$6bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 STOP 4 ]]

(click above to open LifeViewer)

The block can be restored with another block and a boat:

6b2o$5bobo$6bo3$2o6bobo$2o2b2obo2bo$4b2o2bo$10bo$10bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 THUMBSIZE 2 ]]

(click above to open LifeViewer)

Interesting U-turner+still life interactions

9b3o$9b3o$2o6bobo$2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 THUMBSIZE 2 ]]

block moves U-turner at speed of 4c/29 (click above to open LifeViewer)

b3o25b3o$b3o25b3o$obo25bobo$2o26b2o6$34bo$8b2o23bobo$7bo2bo22bo2bo$8b2o24b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 30 THUMBSIZE 2 ]]

left: beehive moves U-turner. right: a U-turner can crawl on loafs (click above to open LifeViewer)

8b2o$7bobo11b2o$6bobo11bobo11b2o$7bo11bobo11bobo11b2o$20bo11bobo11bobo$2bo30bo11bobo$bobo42bo$o$o2bo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 30 THUMBSIZE 2 ]]

a (13,1)c/101 reaction (click above to open LifeViewer)

Hasslers and Shuttles

See U-turner hasslers for a list of known/completed hasslers

Partials

b2o15b2o$b3o13b3o$4o3b2o3b2o3b4o$b3o2bo2bobo2bo2b3o$b2o2bo3bobo3bo2b2o$5bo3bobo3bo$6b3o3b3o3$6b3o3b3o$5bo3bobo3bo$b2o2bo3bobo3bo2b2o$b3o2bo2bobo2bo2b3o$4o3b2o3b2o3b4o$b3o13b3o$b2o15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 20 ]]

p20 (click above to open LifeViewer)

42b2o2$44b2o$42bob2o$41b2o$43b2obo$44bo$43b3o49b2o2bo$13b3o22b2o4bo$13b3o23b4ob2o51b2o$12bobo25b2o2bo8bo40b2obobo$2b2o8b2o26b4o8b4o29bo10bo$bobo38bo8bo2b2o26bobob2o$3o47b2ob4o26b2o$3o48bo4b2o$50b3o29bo2b2o$51bo$49bob2o$53b2o$50b2obo$50b2o2$52b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

p39 (click above to open LifeViewer)

2o$o2bo$3b2o$2o3bo$bo2b2o$2b3o2bo$3bo3bo2$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 48 ]]

p48 (click above to open LifeViewer)

3b2o$3b2o$2bo2bo3bo3bo$2bo2bo2bo2bobo$obo2bo2bo2bo$o3bo3bo2bo$9b2o$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 49 ]]

p49, The domino spark can't be delivered at p7. (click above to open LifeViewer)

7bo$2o6b2o$3bobo6bo$2b2o3bo2bo$2b2ob3ob2o$2bobo2bob2o$2b2obobob2o$3bo5bo2bo$4b5o$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 6 ]]

p54, very edgy and/or high clearance p54 sparker would be needed. (click above to open LifeViewer)

7bo9bo$6b3o7b3o$6b2obo5bob2o$9b2o3b2o$8b2o5b2o$2o2bob3o7b3obo2b2o$3o2b2o11b2o2b3o$b2o3bo11bo3b2o$b2o19b2o$3o19b3o$2o21b2o2$6b2o9b2o$7bo9bo$4b3o11b3o$4bo15bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 59 ]]

p59 (click above to open LifeViewer)

b2o4b2ob2o$2bo4bob2obo$2bob2obo4bo$2o2bobob4ob2o$bobo2bobo4bobo$o2b4obo2b2o2bo$b2o3bobo4bob2o$3b2o3bo2bob2o2bo6bo$3bo5bo4bob3o$4bo5b4o3bo4b2o$3b2o8bob2o4bo2bo$10b2obobo5bo2bo21b2ob2o4b2o$10b2obobo4bo3bo20bob2obo4bo$14bo5bo2bo2b2o2b2o3b2o8bo4bob2obo$21b2o3b2o2b2o2bo2bo5b2ob4obobo2b2o$33bo3bo4bobo4bobo2bobo$33bo2bo5bo2b2o2bob4o2bo$33bo2bo4b2obo4bobo3b2o$34b2o4bo2b2obo2bo3b2o$39b3obo4bo5bo$33bo6bo3b4o5bo$41b2obo8b2o$42bobob2o$42bobob2o$43bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 77 ]]

p77 (click above to open LifeViewer)

2o$o$3b4o$2b3obo$2b3o3$4b2o$3bo2bo$4bo2bo$6bobo$6bob2o$7bo20b2o$22b2o4bo$8bo13b2o2bobo$7bobo12bo3b2o$7b2o11bo$17bobo$16b2obo$8b2o7bobo$7bobo$7bo27b2o$6b2o27bo$33bobo$23bobo7b2o$23bob2o$23bobo$22bo11b2o$15b2o3bo12bobo$14bobo2b2o13bo$14bo4b2o$13b2o20bo$33b2obo$34bobo$35bo2bo$36bo2bo$37b2o3$38b3o$36bob3o$36b4o$42bo$41b2o6$24b3o$19b2o2bo2bo$19b2o7bo$7b2o13bo5bo$7bo15bo4bobo$10b4o11bo4bo$9b3obo16bo$9b3o3$11b2o$10bo2bo$11bo2bo$13bobo$13bob2o$14bo20b2o$29b2o4bo$15bo13b2o2bobo$14bobo12bo3b2o$14b2o11bo$24bobo$23b2obo$15b2o7bobo$14bobo$14bo27b2o$13b2o27bo$40bobo$30bobo7b2o$30bob2o$30bobo$29bo11b2o$22b2o3bo12bobo$21bobo2b2o13bo$21bo4b2o$20b2o20bo$40b2obo$41bobo$42bo2bo$43bo2bo$44b2o3$45b3o$43bob3o$43b4o$49bo$48b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 55 ]]

p110 (click above to open LifeViewer)

6bo2b2o4b2o2bo$6b4obo2bob4o$11b4o$8bobo4bobo$7bobob4obobo$7bobobo2bob obo$4b2obobo6bobob2o$5bobobo6bobobo$5bobo10bobo$4b2obobo6bobob2o$5bob obob4obobobo$5bobob2o4b2obobo$4b2obo10bob2o$7bo10bo$7b2o8b2o$5b2o12b2o $4bo2bobo6bobo2bo$3bobobob2o4b2obobobo$3bobobob2o4b2obobobo$4b2obo2bo 4bo2bob2o$7bo2bo4bo2bo$4b2obobo6bobob2o$4bobob2ob4ob2obobo$6bo5b2o5bo $6b2o10b2o$12b2o$12b2o$10bo4bo$10b6o3$9bo6bo$10b6o$22bo$20b3o$19bo$19b 2o3$23bo3bo$23b5o$25bo$24bobo$25bo$23b5o$o3bo18bo3bo$5o10b3o$2bo5b2o4b o2bo$bobo4b2o4b2o2bo$2bo14b2o2b2o$5o15b3o$o3bo15b4o$20b3o$21b2o$7b2o$ 8bo$5b3o$5bo$12b6o$11bo6bo3$12b6o$12bo4bo$14b2o$14b2o$8b2o10b2o$8bo5b 2o5bo$6bobob2ob4ob2obobo$6b2obobo6bobob2o$9bo2bo4bo2bo$6b2obo2bo4bo2b ob2o$5bobobob2o4b2obobobo$5bobobob2o4b2obobobo$6bo2bobo6bobo2bo$7b2o12b 2o$9b2o8b2o$9bo10bo$6b2obo10bob2o$7bobob2o4b2obobo$7bobobob4obobobo$6b 2obobo6bobob2o$7bobo10bobo$7bobobo6bobobo$6b2obobo6bobob2o$9bobobo2bobobo$9bobob4obobo$10bobo4bobo$13b4o$8b4obo2bob4o$8bo2b2o4b2o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 56 ]]

p112. The problem is more of finding sparkers that don't destroy each other than finding one that would work on it's own. (click above to open LifeViewer)

15b2o$16bo$13b3o$13bo$25bo$23b3o$22bo$22b2o2$3bo$2bobo$3bo5$11b2o$10bo2bo$11b2o4bo$2b2o3b2o7bobo$2b3obo2bo5bo3bo7bo$ob3o2b2o2bobobo2bo7bobo$ob2o23bo$11bo4bo$7b2o3b4o$8bo$5b3o$5bo$17bo$15b3o$14bo$14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 87 ]]

p174, all that is needed is to turn the beehive into a banana spark. Don't bother trying to use 84P87. (click above to open LifeViewer)

bo2bo$ob2obo$bo2bo$bo2bo$ob2obo13b2o$bo2bo14b2o6$3bo$2bobo$2b2o3$13b3o$13b3o$2b2o8bobo$2bobo7b2o$3bo6$bo2bo14b2o$ob2obo13b2o$bo2bo$bo2bo$ob2obo$bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 95 ]]

p190, Junk needs to be deleted before it can destroy the block. (click above to open LifeViewer)

9bo$8bo2bo$6bo5bo6bo7b2o$6bo6bo4bobo6bo$10bo2bo11bobo$12bobo3bo2bo3b2o$7b2ob2o2bobo3b2o$9b2o3bobo2b2ob2o$4b2o3bo2bo3bobo$3bobo11bo2bo$3bo6bobo4bo6bo$2b2o7bo6bo5bo$19bo2bo$21bo2$19bo3bo$17b4o2bo$16b2o3bo$15bo2b3o$14b2o3b2o$14b3ob2o$14bo2bobo$14bobo3bo$14b3o3bo$19bo7$7bo$6bo2bo$4bo5bo6bo7b2o$4bo6bo4bobo6bo$8bo2bo11bobo$10bobo3bo2bo3b2o$5b2ob2o2bobo3b2o$7b2o3bobo2b2ob2o$2b2o3bo2bo3bobo$bobo11bo2bo$bo6bobo4bo6bo$2o7bo6bo5bo$17bo2bo$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 STOP 110 ]]

p220 (click above to open LifeViewer)

Behavior in other rules

in B2n34ez5ek/S23-ceky6en, the U-turner is a p236 oscillator

x = 4, y = 4, rule = B2n34ez5ek/S23-ceky6en b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

from B/S2e3an4an5ij6c through to B1e2-ae3-aij456-n78/S012345678, the U-turner is a still-life

x = 4, y = 4, rule = B3-aij/S234an5ij6c b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

in B36ack7e8/S23, the U-turner is a (31,4)c/389 puffer

x = 4, y = 4, rule = B36ack7e8/S23 b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

in B34e5c6i7c/S234ce5kr6e8, the U-turner is a p352 reflectorless rotating oscillator.

x = 3, y = 5, rule = B34e5c6i7c/S234ce5kr6e8 3o$3o$2o$o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

in B3-y5c7/S23-y5er6ei7e, the U-turner is a (6,1)c/102 spaceship

x = 4, y = 4, rule = B3-y5c7/S23-y5er6ei7e b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

Glider syntheses

there are 17 ways to synthesize a U-turner using 3 gliders, counting only those that produce a U-turner in its canonical b3o$b3o$obo$2o! form.

x = 1255, y = 20, rule = B3/S23 4bo74bo70bo75bo81bobo73bo78bo77bo74bo71bo72bo78bo95bo70bo5b3o71bo74bo 68bobo$5bo74bo70b2o74bo81b2o74bo78bo77bo74bo68b2o74bo78b2o91bobo71bo4b o74bo74bo68b2o$3b3o72b3o69b2o73b3o81bo73b3o76b3o75b3o72b3o69b2o71b3o5b 2o70b2o93b2o69b3o5bo71b3o67bo4b3o68bo$684bo83bobo74bo235b2o74b2o$bo152b o82bo447bo82bo76b2o85bo149b2o72b2o$2bo72b2o5bobo69b2o5bo64b2o8b2o75bo 72bobo76bobo75bobo72bobo62b3o72b2o84bobo86bo74b2o71bo4b3o72b3o$3o2bo70b 2o4b2o69bobo4b2o65b2o7bobo75bo71b2o77b2o76b2o73b2o68bo70b2o170b3o75b2o 77bo74bo$5bobo67bo7bo76bobo63bo85b3o72bo70b2o6bo77bo74bo68b2o68bo249b o78bo74bo91bo$5b2o452b2o226bobo562b2o$458bo149b2o237b3o83b2o318b2o$311b 2o296b2o236bo86b2o313bo$310b2o296bo239bo84bo316bo$312bo935b3o3$534bo$ 534b2o$384b2o147bobo$385b2o$384bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

that number increases to 22 if we include syntheses that produce 3o$3o$2o$o$o!, which converges to the U-turner after 1 generation.

x = 1587, y = 20, rule = B3/S23 8bo70bo74bo70bo75bo77bo70bobo73bo78bo77bo74bo71bo72bo71bo74bo75bo6bo 71bo70bo5b3o71bo74bo68bobo83bo$9bo70bo74bo70b2o74bo77bo70b2o74bo78bo 77bo74bo68b2o74bo71b2o73b2o74bo4bo70bobo71bo4bo74bo74bo68b2o81b2o$7b3o 68b3o72b3o69b2o73b3o75b3o70bo73b3o76b3o75b3o72b3o69b2o71b3o5b2o63b2o 73b2o73b3o4b3o69b2o69b3o5bo71b3o67bo4b3o68bo83b2o$bo824bo83bobo67bo74b o294b2o74b2o153bo$2bo73bo152bo82bo63bo6bo443bo82bo69b2o73b2o144bo149b 2o72b2o155bo$3o3bo70bo72b2o5bobo69b2o5bo64b2o8b2o63b2o4b2o71bo72bobo 76bobo75bobo72bobo62b3o72b2o77bobo72bobo71b2o72bo74b2o71bo4b3o72b3o 143b2o2b3o$6b2o67b3o2bo70b2o4b2o69bobo4b2o65b2o7bobo61bobo4bobo71bo71b 2o77b2o76b2o73b2o68bo70b2o226b2o69b3o75b2o77bo74bo142bobo$5bobo72bobo 67bo7bo76bobo63bo152b3o72bo70b2o6bo77bo74bo68b2o68bo84b3o140bo148bo78b o74bo91bo53bo$80b2o519b2o226bobo153bo535b2o$600bo149b2o234bo70b3o142b 2o318b2o$453b2o296b2o304bo145b2o313bo$452b2o296bo307bo143bo316bo$454bo 1062b3o3$676bo$676b2o$526b2o147bobo$527b2o$526bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 THUMBSIZE 2 ]]

(click above to open LifeViewer)

Images

U-turner at generation 163

If the tub made at generation 79 is removed, this will be the ash left over

Miscellaneous

the reaction in which C28 first noticed the U-turner object:

6b3o$6bobo$bo4bobo$obo$obo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 6 STOP 24 ]]

(click above to open LifeViewer)

herschel+glider to U-turner+glider

bo$2bo$3o3$13b3o$15bo$14b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 15 STOP 47 ]]

the reaction in question (click above to open LifeViewer)

the ash of a U-turner+glider collision has an xs15_6t1egoz11

bo$2bo$3o26$35b3o$35b3o$34bobo$34b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

almost R-turner to U-turner

20bo$19bobo$20bo2$18b5o$18bo4bo$21bo2bo$21b2obo2bo$18bo5bobobo$17bobo4bo2bo$17bo2bo2b2o$5b2o11b2o$4bo$5bo2bo$6b3o5$2b2o$bobo$bo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

is there a replacement for the eater 1? (click above to open LifeViewer)

growing spaceship that uses the block-moving-U-turner reaction

14b3o$14b3o$5b2o6bobo$5b2o6b2o3$25b2o$25b2o3$5b2o$5b2o3$25b2o$25b2o2$9b2o$5b2o4bo$6bo2b2o3bobo$4bo8bo$13bo3bo11b2o$13bo11b2o4bo$13bo2bo9bo2b2o3bobo$13b3o8bo8bo$33bo3bo$6b3o24bo$33bo2bo$8bo24b3o$obo4b2o$3bo2b3o17b3o$3bo2b3o$o2bo2b2obo18bo$b3o3b3o10bobo4b2o$8bo14bo2b3o$23bo2b3o$20bo2bo2b2obo$21b3o3b3o$28bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

growing and growing... (click above to open LifeViewer)

a way to delete the tub left at generation 79

10b3o$10b3o$9bobo$9b2o13$3b2o$3bo3b2o$2obo2bobo$obob3obobob2o$3bo3b2ob2obo$4b2o3bo$6b2obo$6bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

weird catalyst (click above to open LifeViewer)

2 U-turners "push" each other

b3o$b3o$obo$2o8$3b2o$2bobo$b3o$b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] (click above to open LifeViewer)

b3o$b3o$obo$2o15$2b2o$bobo$3o$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] different reaction (click above to open LifeViewer)

almost B to H with U intermediate

10b2o$10bo$8b3o3$b2o$2bo$bo$b2o$3bo$b3o13bo$o15b2o$2o8b2o3b2o$10b2o4b2o11$15b2o$14bo2bo$15bobo$16bo2$26b3o$26bo$27bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

an eater 1 works just fine in place of the glider except for the fact that it gets in the way of the B (click above to open LifeViewer)

temporary R-bee on shillelagh is formed at generation 72

8b3o$8b3o$7bobo$7b2o10$b2o3bo$bo3bobo$2bo3b2o5b2o$3bo9bo$bob5o6b3o$obo4bo8bo$obo2bo$bo3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 30 STOP 72 ]]

(click above to open LifeViewer)

something

b3o$b3o$obo$2o6$7b2obo$7b2ob3o$13bo$7b2ob3o$8bobo$8bobo$9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

also something

b3o$b3o$obo$2o2$9b2o$7bo2bo$7b3o2$7b2obo$8bob3o$7bo5bo$8b5o$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)

odd placement of an aircraft carrier

12b3o$12b3o$11bobo$11b2o6$8b3o$5bobo3bobo$3bobo7bobo$b3ob2o5b2ob3o$o3bobobobobobo3bo$b3o5bo5b3o$4b4o3b4o$3bo3b5o3bo$2bobobo2bo2bobobo$3bo3b2ob2o3bo$4b3o2bo2b3o$7b5o$6bo5bo$7b5o$9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

(click above to open LifeViewer)