White to retract his last move and then mate in one move.
Pete Tamburro
on
Published in Chess Puzzles
After you study this for a while, you come to the conclusion that a promotion must have happened last move, but which piece and to what? And then what’s the mate in one? White’s last move was his pawn on d7 capturing Black’s knight on c8 and made a rook. Now with the move retracted, White takes the pawn on d7 and captures Black’s rook on e8 and promotes it to a knight, which is then mate.
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