id: 06058256 dt: j an: 2012d.00016 au: Elran, Yossi ti: Retrolife and the pawns neighbors. so: Coll. Math. J. 43, No. 2, 147-151 (2012). py: 2012 pu: Mathematical Association of America (MAA), Washington, D.C. la: EN cc: A24 ut: game of life ci: li: doi:10.4169/college.math.j.43.2.147 ab: Summary: One of Martin Gardner’s most famous columns introduced John Conway’s Game of Life. The inverse problem, finding a previous generation in the Game of Life given some extra constraints, was introduced a few years ago and is referred to as Retrolife. In this paper the author presents a puzzle played on a chessboard that is isomorphic to a variation of Retrolife. rv: