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Welcome to LifeWiki, the wiki for Conway's Game of Life. Currently contains 2,151 articles.

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This week's featured article The OTCA metapixel is a 2048 × 2048 period 35328 unit cell that was constructed by Brice Due from Fall 2005 through Spring 2006. It has many advantages over the previous-known unit cells such as the p5760 unit Life cell and deep cell, including the ability to emulate any Life-like cellular automaton and the fact that, when zoomed out, the ON and OFF cells are easy to distinguish. It is designed to run quickly under the HashLife algorithm, and thus Golly is generally used to view and/or manipulate meta-patterns made up of OTCA metapixels (and some such patterns even come packaged with Golly). Read more... In the news May 17: Matthias Merzenich constructs a new period-20 glider gun based on a period-20 oscillator by wwei23 and David Raucci. May 14-21: Frank Everdij discovers two new elementary c/6 diagonal spaceships using ikpx2. May 9: Adam P. Goucher constructs period-12 knightpuffer and knightrake technology using variants of the new sprayer knightship; this is quickly followed by other puffer and rake periods such as a p48 mechanism by cvojan. May 9: After a three-month, 16-thread ikpx2 search, Adam P. Goucher finds a completion for a second elementary knightship front end found by Dylan Chen, which is known as the sprayer due to a huge accessible side spark at the front. 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: 1407 patterns (including 579 oscillators, 139 spaceships and 324 still lifes); 3072 images (610 animated and 2462 static); Over 3000 downloadable pattern files; Glider syntheses for 765 patterns. Download pattern collection 4.5 MB .zip archive containing the 3500+ RLE pattern files used on the wiki

Did you know... ... that it is currently an open question as to if there exists a periodic pattern whose only predecessors are its own evolutionary sequence? ... that it was proved in the early 1970s that reflectorless rotating oscillators exist in Life, but none were found until 2018 when Adam P. Goucher completed the 0E0P metacell? ... that there are currently known elementary spaceships with speeds c/7 and c/10 orthogonal, but none with c/8 or c/9? ... that there are currently known elementary spaceships with speeds c/7 and c/12 diagonal, but none with c/8, c/9, c/10 or c/11? ... that while the speed limit for orthogonal spaceships in rules using the Moore neighbourhood is c orthogonal, spaceships in Larger than Life rules are capable of breaking this barrier? ... that without the use of adjustable glider loops, there are no known oscillators with periods 43 or 53? ... that without the use of Herschel loops or adjustable glider loops, there are no known oscillators with periods 59 or 61? ... that small stable elementary period multipliers (also known as pulse dividers) have been found for multipliers of 2x, 3x, and 4x, but not for 5x or higher? ... that with reverse caber-tosser universal constructor technology, it is possible to build any possible glider-constructible pattern, no matter what size, using only 17 gliders? ... that there are at least four known ways to send information diagonally at a speed greater than the maximum spaceship speed through vacuum? (Complete mechanisms include speeds approaching c/2 via two perpendicular telegraphs, and 2c/3 via a 2c/3 wire.)           Showing 10 items out of 128 More did you know...