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Welcome to LifeWiki,
the wiki for Conway's Game of Life.
Currently contains 2,145 articles.
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This week's featured article

Pentadecathlon is a period-15 oscillator that was found in 1970 by John Conway while tracking the history of short rows of cells (see one-cell-thick pattern). Indeed, 10 cells placed in a row quickly evolve into this object, which is the most natural oscillator of period greater than 3. In fact, it is the fifth or sixth most common oscillator overall, being about as frequent as the clock, but much less frequent than the blinker, toad, beacon or pulsar. It is the only known oscillator that is a polyomino in more than one phase (besides the blinker).

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:
Download.gif Download pattern collection
4.5 MB .zip archive containing the 3500+ RLE pattern files used on the wiki

Did you know...

  • ... that no new spaceship speeds were discovered after 1970 until 1989?
  • ... that the first stable reflector was found in October 1996, and the first fast stable reflector appeared in 2013, allowing the construction of oscillators of all periods ≥43 ticks?
  • ... that nineteen spaceship velocities have been constructed, excluding several infinitely adjustable families of ships?
  • ... that there are 71 distinct ways for two gliders to collide, but it is unknown how many distinct 3-glider collisions there are?
  • ... that to display the smallest known gun pattern for a Gemini spaceship at 1 cell = 1 pixel, on a standard-density video monitor, a screen over one mile square would be needed?
  • ... that no odd-period glider guns were known before 1995, when a period 565 p5-spark-assisted B-heptomino loop was constructed by David Buckingham?
  • ... that even though the speed limit for spaceships is c/2 in a vacuum, in a medium of stripes agar there are "spaceships" that can travel at lightspeed along the stripes, or two thirds of lightspeed perpendicular to the stripes?
  • ... that the smallest known spacefiller pattern consists of 183 cells?
  • ... that the smallest known sawtooth pattern in Conway's Life consists of only 177 cells?
  • ... that there are now over a hundred and seventy known Herschel conduits, counting stable conduits only, and a much larger number if oscillator-supported conduits are included?          
Showing 10 items out of 128 More did you know...