A version of nim-like games in which the player taking the last piece is the loser. For most impartial games, this form is much harder to analyze, but it requires only a trivial modification for the game of nim.
Misère-Form Game
See also
Game, Nim, Normal-Form GameExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Misère-Form Game." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Misere-FormGame.html