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Welcome to LifeWiki, the wiki for Conway's Game of Life. Currently contains 2,237 articles.

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This week's featured article The bumper is a type of color-preserving periodic reflector with a repeat time of 34 that was discovered by Tanner Jacobi on April 6, 2016. It consists of a transparent loaf, an eater, and a sparker. It can use sparkers of any period above period 3. The discovery of the bumper allowed many gun periods in the gun collection to be significantly reduced in terms of bounding box. Read more... In the news November 9: A "semi-natural" Gosper glider gun appears on Catagolue for the first time, in a symmetric soup. November 8: Matthias Merzenich discovers a dependent bouncer-based period-23 glider reflector using an oscillator by Mitchell Riley. November 7: Mitchell Riley discovers the first true period-25 glider gun. November 7: Pavel Grankovskiy completes an RCT demo pattern showing the complete cleanup of all of the far-distant ash created by the initial GPSEs, leaving unfinished only two relatively simple construction and cleanup tasks at the epicentre. November 4-6: Nico Brown discovers the p23 pi-heptomino hassler, the smallest known period-23 oscillator up to that point, and then finds yet another smaller p23 oscillator, 55P23, two days later. November 3: Nico Brown discovers 54P94, the smallest known period-94 oscillator. November 2: Nico Brown discovers a small period-51 glider gun, whose capped version is also the smallest known period-51 oscillator. Editable news item submissions page • Archive • @conwaylife on Twitter Pattern collection The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find: 1539 patterns (including 624 oscillators, 151 spaceships and 371 still lifes); 3547 images (606 animated and 2941 static); Over 3000 downloadable pattern files; Glider syntheses for 886 patterns. Download pattern collection 6MB .zip archive containing the 5200+ Game of Life RLE pattern files used on the wiki Also available: 38KB .zip archive containing approximately 75 pattern files for other cellular automata

Did you know... ... that the first elementary knightship, Sir Robin, was discovered only in 2018, with there having been a very close call in 2004? ... that there is a 5 × 2 counterexample to the Coolout Conjecture, proving that patterns that are internally compatible with stability can not always be made part of a larger still life, no matter what cells are added around the edges? ... that a Conway's Life pattern representing a complete programmable 8-bit computer, consisting only of buckaroos, p60 glider guns, and glider duplicators, was completed in November 2016? ... that whilst no elementary oblique spaceships were found in B3/S23 until 2018, and none have occurred naturally, at least two naturally occurring reactions have been discovered in B38/S23 that travel in an oblique direction? ... that not all 1.00 volatility oscillators are phoenixes, but volatility 1.00 period 2 oscillators must be phoenixes? ... that no pattern inside a 6 × 6 bounding box is a Garden of Eden? ... that Garden of Eden patterns with only 45 ON cells have been found? ... that it is known that no Garden of Eden patterns exist that are 1, 2, or 3 cells high, but that it is currently an open question whether a 4-cell-high GoE can be constructed? ... that 6-cell-high Garden of Eden patterns were constructed as far back as 1973, but 5-cell-high GoEs were unknown until Steven Eker found some in 2016? ... that while both a big S and a ship-tie require four gliders to synthesise individually, there is a dirty 3-glider collision whose final ash contains one of each?           Showing 10 items out of 161 More did you know...