## The Doomsday rule

The Doomsday rule This is a repost of an old article :) A few months ago I came across the name of J. H. Conway: you’re wondering who the hell he is. Well, Conway is an English mathematician active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory. He has also contributed to many branches of recreational mathematics and he is the invention of the Game of Life....