Goban

Goban
x = 33, y = 32, rule = B3/S23 10b2o$10bobo$13bo2b2o$11b2obo2bo$10bobob2o$11bo$21b2o$21bo$6bo5b3o4bobo$5bobo3bo3bo3b2o4bo$5b2o3bo5bo7bobo$3b2o5bo5bo7bobo$2bo2b2o3bo5bo6b2ob3o$bobo2bo4bo3bo13bo$o2b2o7b3o8b2ob3o$2o21b2obo$6bob2o21b2o$4b3ob2o8b3o7b2o2bo$3bo13bo3bo4bo2bobo$4b3ob2o6bo5bo3b2o2bo$6bobo7bo5bo5b2o$6bobo7bo5bo3b2o$7bo4b2o3bo3bo3bobo$11bobo4b3o5bo$11bo$10b2o$21bo$17b2obobo$15bo2bob2o$15b2o2bo$20bobo$21b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 560 THUMBSIZE 3 ZOOM 15 GPS 8 LOOP 19 ]]
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Pattern type	Oscillator
Number of cells	134
Bounding box	33 × 32
Period	19 (mod: 19)
Heat	38.5
Volatility	0.68 | 0.68
Kinetic symmetry	Unspecified
Discovered by	iNoMed May13 Period1GliderGun
Year of discovery	2024
Rules Outer-totalistic rules B3/S23 – B38/S23 # of rules 21 = 2 Isotropic rules B3-ck/S23 – B34z5j6ack8/S234cet5j6ikn.
Pattern files Plaintext goban.cells RLE goban.rle
Identifiers apgcode xp19_y7o4ap30g8gzy4253032war0raa4z358ml2wg08s2y5ca23zw641xjg1y5ok0exc9jzy26221ggo0ogx21y1253056zy5122ege20oi6o652zyc6421

Goban is a period-19 oscillator, and is the second period-19 oscillator to be discovered, after Cribbage. It was found by Period1GliderGun on February 24, 2024, as a completion of a period-19 wick by May13, which was itself a stabilisation of a partial by iNoMed for which Period1GliderGun had previously found a period-38 stabilisation. On the same day, BlinkerSpawn reduced its stator by two cells, yielding its present minimum population of 134.

It consists of two sets of two different unnamed catalysts, two eater 2s and two fishhooks hassling two honey farms. The period-38 form swaps two of the unnamed catalysts for a pair of ships restored by a period-multiplying half-bakery/ship-tie catalyst.

x = 34, y = 23, rule = B3/S23 4b2o13b2o$3bobo10bo2bobo$3b2o9b3o5bo2b2o$b2o10bo6b2obo2bo$obo10b2o4bobob2o$2o4b2o12bo$5bobo22b2o$5b2o23bo$10b3o8b3o4bobo$9bo3bo6bo3bo3b2o$8bo5bo4bo5bo$8bo5bo4bo5bo$8bo5bo4bo5bo$4b2o3bo3bo6bo3bo$3bobo4b3o8b3o$3bo23b2o$2b2o22bobo$13bo12b2o4b2o$9b2obobo4b2o10bobo$7bo2bob2o6bo10b2o$7b2o2bo5b3o9b2o$12bobo2bo10bobo$13b2o13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 360 WIDTH 600 THUMBSIZE 2 ZOOM 14 GPS 8 AUTOSTART ]]

The original p38 (click above to open LifeViewer)

Gallery

x = 34, y = 64, rule = B3/S23 10b2o$10bobo$13bo2b2o$11b2obo2bo$10bobob2o$11bo$21b2o$21bo$6bo5b3o4bob o4bo$5bobo3bo3bo3b2o4bobo$2o3b2o3bo5bo8bobo$o2b2o5bo5bo7b2ob3o$b2o2b2o 3bo5bo13bo$3bo2bo4bo3bo8b2ob3o$3b2o7b3o9b2obo2$6bob2o9b3o7b2o$4b3ob2o 8bo3bo4bo2bo$3bo13bo5bo3b2o2b2o$4b3ob2o7bo5bo5b2o2bo$6bobo8bo5bo3b2o3b 2o$6bobo4b2o3bo3bo3bobo$7bo4bobo4b3o5bo$12bo$11b2o$22bo$18b2obobo$16bo 2bob2o$16b2o2bo$21bobo$22b2o2$10b2o$10bobo$13bo2b2o$11b2obo2bo$10bobob 2o$11bo$21b2o$21bo$6bo5b3o4bobo$5bobo3bo3bo3b2o4bo$2o3b2o3bo5bo7bobo$o 2b2o5bo5bo7bobo$b2o2b2o3bo5bo6b2ob3o$3bo2bo4bo3bo13bo$3b2o7b3o8b2ob3o$ 23b2obo$6bob2o$4b3ob2o8b3o7b2o$3bo13bo3bo4bo2bo$4b3ob2o6bo5bo3b2o2b2o$ 6bobo7bo5bo5b2o2bo$6bobo7bo5bo3b2o3b2o$7bo4b2o3bo3bo3bobo$11bobo4b3o5b o$11bo$10b2o$21bo$17b2obobo$15bo2bob2o$15b2o2bo$20bobo$21b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 8 GPS 19 STARTFROM 19 THEME BOOK ]]

Two isomers of Goban. The top one is 34 × 31 and has 134 cells, the bottom one is 33 × 32 and has 138 cells. Blue cells indicated dead cells that are alive at some point during the pattern's evolution. (click above to open LifeViewer)

x = 157, y = 90, rule = B3/S23 10b2o$10bobo$13bo2b2o$11b2obo2bo$10bobob2o$11bo$21b2o$21bo$6bo5b3o4bo bo6b2o$5bobo3bo3bo3b2o4bo2bobo$2o3b2o3bo5bo6b3o5bo2b2o$o2b2o5bo5bo5bo 6b2obo2bo$b2o2b2o3bo5bo5b2o4bobob2o$3bo2bo4bo3bo13bo$3b2o7b3o24b2o$39b o$6bob2o9b3o8b3o4bobo6b2o$4b3ob2o8bo3bo6bo3bo3b2o4bo2bobo$3bo13bo5bo4b o5bo6b3o5bo2b2o$4b3ob2o7bo5bo4bo5bo5bo6b2obo2bo$6bobo8bo5bo4bo5bo5b2o 4bobob2o$6bobo4b2o3bo3bo6bo3bo13bo$7bo4bobo4b3o8b3o24b2o$12bo44bo$11b 2o24b3o8b3o4bobo6b2o$22bo13bo3bo6bo3bo3b2o4bo2bobo$18b2obobo4b2o5bo5b o4bo5bo6b3o5bo2b2o$16bo2bob2o6bo5bo5bo4bo5bo5bo6b2obo2bo$16b2o2bo5b3o 6bo5bo4bo5bo5b2o4bobob2o$21bobo2bo4b2o3bo3bo6bo3bo13bo$22b2o6bobo4b3o 8b3o24b2o$30bo44bo$29b2o24b3o8b3o4bobo6b2o$40bo13bo3bo6bo3bo3b2o4bo2b obo$36b2obobo4b2o5bo5bo4bo5bo6b3o5bo2b2o$34bo2bob2o6bo5bo5bo4bo5bo5bo 6b2obo2bo$34b2o2bo5b3o6bo5bo4bo5bo5b2o4bobob2o$39bobo2bo4b2o3bo3bo6bo 3bo13bo$40b2o6bobo4b3o8b3o24b2o$48bo44bo$47b2o24b3o8b3o4bobo$58bo13bo 3bo6bo3bo3b2o6b2o$54b2obobo4b2o5bo5bo4bo5bo7bo2bobo$52bo2bob2o6bo5bo5b o4bo5bo5b3o5bo2b2o$52b2o2bo5b3o6bo5bo4bo5bo4bo6b2obo2bo$57bobo2bo4b2o 3bo3bo6bo3bo5b2o4bobob2o$58b2o6bobo4b3o8b3o13bo$66bo43b2o$65b2o43bo$76b o13b3o8b3o4bobo$72b2obobo4b2o5bo3bo6bo3bo3b2o6b2o$70bo2bob2o6bo4bo5bo 4bo5bo7bo2bobo$70b2o2bo5b3o5bo5bo4bo5bo5b3o5bo2b2o$75bobo2bo7bo5bo4bo 5bo4bo6b2obo2bo$76b2o6b2o3bo3bo6bo3bo5b2o4bobob2o$83bobo4b3o8b3o13bo$ 83bo43b2o$82b2o43bo$93bo13b3o8b3o4bobo$89b2obobo4b2o5bo3bo6bo3bo3b2o6b 2o$87bo2bob2o6bo4bo5bo4bo5bo7bo2bobo$87b2o2bo5b3o5bo5bo4bo5bo5b3o5bo2b 2o$92bobo2bo7bo5bo4bo5bo4bo6b2obo2bo$93b2o6b2o3bo3bo6bo3bo5b2o4bobob2o $100bobo4b3o8b3o13bo$100bo43b2o$99b2o43bo$110bo13b3o8b3o4bobo4bo$106b 2obobo4b2o5bo3bo6bo3bo3b2o4bobo$104bo2bob2o6bo4bo5bo4bo5bo8bobo$104b2o 2bo5b3o5bo5bo4bo5bo7b2ob3o$109bobo2bo7bo5bo4bo5bo13bo$110b2o6b2o3bo3b o6bo3bo8b2ob3o$117bobo4b3o8b3o9b2obo$117bo$116b2o24b3o7b2o$127bo13bo3b o4bo2bo$123b2obobo4b2o5bo5bo3b2o2b2o$121bo2bob2o6bo5bo5bo5b2o2bo$121b 2o2bo5b3o6bo5bo3b2o3b2o$126bobo2bo4b2o3bo3bo3bobo$127b2o6bobo4b3o5bo$ 135bo$134b2o$145bo$141b2obobo$139bo2bob2o$139b2o2bo$144bobo$145b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 550 WIDTH 1000 THUMBSIZE 2 ZOOM 6 GPS 19 ]]

May13's wick stabilisation. The three right-side connections use a different isomer from the three left-side connections -- notice the slight change in the angle of the wick. (click above to open LifeViewer)

Etymology

It was named after the goban (transliteration of 碁盤), the board upon which the game of Go is played, due to the early history of Life involving the manual simulation of patterns upon them, and as a reference to the fact that they are traditionally 19 × 19.

External links

• Goban at Adam P. Goucher's Catagolue
• Goban at Wikipedia (name origin)