Check out Atomic Chess, our featured variant for November, 2024.
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Keys "s"=save "l"=load "b"=back once
Mr. den Oude, Dutch, 1988. Packaged and distributed. No pawn-two; just after its first move, a pawn may be captured by an adjacent hostile pawn. Promotion only to previously captured piece. Castling permitted. Bare king loses.
These are simple illustrations rather than strong opponents.
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Written by Ed Friedlander