Chess Puzzle #HQKqs — Advanced, Black to move, endgame

Position

White: king f1; rook f8; knight d4; pawns b7/c3/e3. Black: king h7; rook b2; bishop e4; pawns d5/h3. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: b8=Q — pawn b7→b8, promotes to queen. Now Black to move.
2. Best move: Rxb8 — rook b2→b8, captures queen. Opponent replies Rxb8 (rook f8→b8, captures rook).
3. Best move: h2 — pawn h3→h2. Opponent replies Kf2 (king f1→f2).
4. Best move: h1=Q — pawn h2→h1, promotes to queen.

Tactical themes

advanced pawn, advantage, endgame, long, promotion. The key move Rxb8 wins material.

Position data

FEN: 5R2/1P5k/8/3p4/3Nb3/2P1P2p/1r6/5K2 w - - 1 55

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