Chess Puzzle #n0CrU — Expert, Black to move, endgame

Position

White: king e5; rook b8; pawns a7/e4. Black: king e7; rook d8; pawns b3/f2/g5. Black is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Rxd8 — rook b8→d8, captures rook. Now Black to move.
2. Best move: f1=Q — pawn f2→f1, promotes to queen. Opponent replies a8=Q (pawn a7→a8, promotes to queen).
3. Best move: Qf4+ — queen f1→f4, gives check. Opponent replies Kd4 (king e5→d4).
4. Best move: Qd2+ — queen f4→d2, gives check.

Tactical themes

advanced pawn, endgame, equality, long, promotion. The key move is f1=Q.

Position data

FEN: 1R1r4/P3k3/8/4K1p1/4P3/1p6/5p2/8 w - - 0 53

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