This week's featured article

Parallel halfbaked knightship or Parallel HBK is a knightship based on the wellknown halfbakery reaction with a glider, and an improvement over the original halfbaked knightship. There are several significant differences in design between the original halfbaked knightship and Chris Cain's smaller version. The slowsalvo constructions are done serially in Goucher's design, and an extra glider is used to suppress the salvo that triggers the halfbakery trails.
On January 3, 2015 Chris Cain built a HBK gun, that can run in Golly in reasonable time.
The gun's design implies an easy synthesis with 57,286 gliders, though this is considerably larger than an earlier 38,380glider synthesis by Michael Simkin.

In the news


Pattern collection

The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find:


Did you know...

 ... that with the appearance of the 0E0P metacell, the number of periods for which strict volatility 1 oscillators were known went from 12 to infinity?
 ... that Copperhead is not only the first c/10 orthogonal spaceship ever found, but also remarkably compact for a pattern not discovered until 2016?
 ... that loafer is the fifth smallest nonflotilla spaceship, but was discovered 43 years after the four spaceships smaller than it?
 ... that despite being the fourth smallest nonflotilla orthogonal spaceship, loafer did not appear from a single randomly generated soup until 2020?
 ... that all known glider eaters take at least four ticks to recover to their original state after eating a glider?
 ... that the formerly smallest 31c/240 spaceship does not make use of the 31c/240 reaction?
 ... that there is roughly one chance in 10^(N/3) that a still life appearing out of random soup will have a population of exactly N cells?
 ... that the number of still lifes with N+1 bits is roughly 2.48 times larger than the number of Nbit still lifes?
 ... that the odds of a randomlychosen 20×20 soup pattern being a methuselah that lasts between 1000N and 1000(N+1) ticks, is roughly the same as the odds that it will last any amount of time longer than 1000(N+1) ticks?
 ... that all still lifes up to 17 cells can be synthesized at a cost of less than one glider per cell?

