R-pentomino/Snippet

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The R-pentomino is a methuselah that was found by John Conway in 1970. It is by far the most active polyomino with fewer than six cells; all of the others stabilize in at most 10 generations, but the R-pentomino does not do so until generation 1103, by which time it has a population of 116. It releases a glider in generation 69, which was noticed by Richard K. Guy and was the first glider ever observed. The stable pattern that results from the R-pentomino consists of eight blocks, six gliders, four beehives, four blinkers, one boat, one loaf, and one ship.