Dictionary

pi-heptomino en · NOUN

Meanings

1. A particular symmetric seven-cell methuselah in Conway's Game of Life.
   • A growing spaceship which uses the pi-heptomino. 1993 March 16, David Bell, “Life program (part 14/18)”, in comp.theory.cell-automata (Usenet):
   • 1) gliders on paths *adjacent* to the six annihilating paths produce a pi-heptomino and consequent large explosion -- and there's no way to place blocks on nearby lanes to catch those gliders, because they'd interact messily with gliders on some of the original six glider paths; 2005 February 23, Dave Greene, “exist glider gun able of reconstruction in Life?”, in comp.theory.cell-automata (Usenet):
   • It does include a pseudo-spaceship based on the Pi-heptomino (pseudo because it needs some classic spaceships in front, and so the middle gets longer and longer. 1995 March 30, John Harper, “Life - has anybody found....”, in comp.theory.cell-automata (Usenet):

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