Brain

Brain
b3o9b3ob$obob2o5b2obobo$obobo7bobobo$bob2ob2ob2ob2obob$5bobobobo5b$3bo bobobobobo3b$2b2obobobobob2o2b$2b3o2bobo2b3o2b$2b2o2bo3bo2b2o2b$bo4b2o b2o4bob$bo13bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 3 0 -1/3 THUMBSIZE 3 GPS 3 HEIGHT 480 WIDTH 480 ZOOM 27 ]]
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Pattern type	Spaceship
Number of cells	62
Bounding box	17 × 11
Direction	Orthogonal
Period	3
Mod	3
Speed	c/3 | c/3
Heat	45.3
Discovered by	David Bell
Year of discovery	1992
Rules Outer-totalistic rules B3/S23 – B378/S2378 # of rules 24 = 16 Isotropic rules B3/S2-n3-c – B2n34eq5acein6-ik78/S234ceirwy5-cikn6-ac78
Glider synthesis Fewest gliders 99† Catagolue-generated RLE synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext brain.cells RLE brain.rle
Identifiers apgcode xq3_07gg2u3t0t3u2gg7zcinjq9630369qjniczw1y71 Pentadecathlon ID 62P3H1V0.1

For the cellular automaton sometimes called Brain, see OCA:Brian's Brain.

Brain is a c/3 orthogonal spaceship found by David Bell in May 1992. It provides a weak spark at its back which can sometimes be used to perturb objects, such as a glider.

x = 22, y = 14, rule = B3/S23 b3o9b3o$obob2o5b2obobo$obobo7bobobo$bob2ob2ob2ob2obo$5bobobobo$3bobobo bobobo$2b2obobobobob2o$2b3o2bobo2b3o$2b2o2bo3bo2b2o$bo4b2ob2o4bo$bo13b o$19b2o$19bobo$19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 HEIGHT 440 Y -8 GPS 10 AUTOSTART T 0 PAUSE 3 T 57 PAUSE 2 LOOP 58 ]]

Brain perturbs a glider to produce a honey farm (click above to open LifeViewer) RLE: here Plaintext: here

Construction

A 99-glider synthesis of Brain was found by Goldtiger997 in November 2022, solving a long-standing open problem. A period-690 gun with bounding box 910 × 875 was assembled by Entity Valkyrie in September 2023, using the 99-glider synthesis.

#C https://conwaylife.com/forums/viewtopic.php?p=154110#p154110 #C The 99-glider continuous synthesis of Brain x = 295, y = 271, rule = B3/S23 26bo241bo$27bo239bo$25b3o239b3o5$30bo233bo$31bo231bo$29b3o231b3o2$46bo bo$41bo5b2o$39bobo5bo$22bo8bo8b2o221bo8bo$23bo8bo229bo8bo$21b3o6b3o 229b3o6b3o$18bo257bo$16bobo257bobo$17b2o257b2o3$22bo249bo$23bo247bo$ 21b3o247b3o17$26bo241bo$24bobo241bobo$20bo4b2o241b2o4bo$21b2o249b2o$ 20b2o251b2o7$41bo$42bo$40b3o3$53bo11bo163bo11bo6bo$51bobo12b2o159b2o 12bobo3bo$52b2o11b2o161b2o11b2o4b3o13$77bo139bo$78b2o135b2o$77b2o137b 2o5$70bo153bo$71b2o149b2o$70b2o5bo139bo5b2o$75bobo139bobo$76b2o139b2o 3$207bo$205b2o$206b2o3$92bo$93b2o94bo$92b2o93b2o$188b2o$119bo$120b2o$ 110bo8b2o80bo$111b2o87bo$110b2o88b3o$170bo$168b2o$98bo70b2o$99bo90bo$ 97b3o89bo$125bo63b3o3bobo$123bobo69b2o$124b2o70bo$109bo61bo$110bo58b2o 11bo$102bobo3b3o59b2o10bobo$103b2o77b2o$103bo2$117bo$115bobo$116b2o41$ 111b2o$112b2o$93b3o15bo9b2o49b2o$95bo24bobo49bobo$94bo27bo49bo$187b2o$ 186b2o$97b2o89bo15b3o$96bobo105bo$98bo17b3o86bo$118bo$117bo$201b2o$ 201bobo$181b3o17bo$181bo$182bo3$181bo$104b2o74b2o$105b2o73bobo$104bo$ 175b2o7bo$175bobo5b2o$175bo7bobo3$105b2o$104bobo$106bo6$78b2o135b2o$ 79b2o133b2o$78bo15b2o112bo7bo$95b2o110b2o$94bo112bobo2$63bo27b2o6b3o 129bo$63b2o27b2o7bo128b2o$62bobo26bo8bo129bobo3$206b3o$206bo$207bo3$ 71b2o$70bobo$72bo$75b2o$76b2o$75bo139b2o10b2o$215bobo9bobo$215bo11bo$ 223b2o$222b2o$73b2o149bo$36bo35bobo$36b2o36bo$35bobo2$68b2o$69b2o155b 3o$68bo157bo5bo$227bo3b2o$231bobo8$55b3o179b3o$57bo179bo$50bo5bo181bo 5bo$50b2o191b2o$15b3o31bobo191bobo31b3o$17bo259bo$16bo261bo3$57bo$57b 2o$56bobo3$28b3o211bo21b3o$30bo210b2o21bo$3o26bo211bobo21bo26b3o$2bo 289bo$bo291bo8$24b2o243b2o$25b2o11b2o228b2o$24bo7b2o3bobo221b2o7bo$33b 2o4bo220b2o$32bo218b3o8bo$251bo$14b2o236bo$13bobo$15bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ WIDTH 800 HEIGHT 800 THEME Book ZOOM 8 AUTOSTART GPS 30 T 0 PAUSE 1 T 60 PAUSE 5 T 174 PAUSE 1 T 246 PAUSE 1 T 306 PAUSE 1 T 314 PAUSE 1 T 348 PAUSE 1 T 366 PAUSE 1 T 400 PAUSE 1 T 540 PAUSE 1 T 570 PAUSE 2 LOOP 571 ]]

The 99-glider synthesis of Brain (click above to open LifeViewer) RLE: here Plaintext: here

See also

• 25P3H1V0.1
• Dart
• Turtle
• Wasp

External links

• Brain at the Life Lexicon
• Brain at Adam P. Goucher's Catagolue
• 62P3H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs