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Losing chess, also called antichess or suicide chess, is one of the most popular chess variants.

Rules[]

The rules of losing chess are the same as those of regular chess, except the following:

  • Players must capture an enemy piece if possible.
    • If multiple captures are available, the capturing player will get to choose.
  • There is no castling.
  • The king is not subject to check or checkmate, and therefore can be captured like any other piece.
    • Thus, it is permitted to expose the king to capture.
    • A pawn may also promote to a king.
  • If stalemate occurs as a result of one player having no legal move, or one player having no pieces remaining on the board, that player wins the game.

Solved game[]

This variant has been weakly solved as a win for White, beginning with 1. e3.

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