Chess Puzzle #4bUsf — Beginner, Black to move, middlegame

Position

White: king g1; queen a6; rooks d7/f1; bishop f3; pawns c7/d6/f2/g2/h2. Black: king g8; queen b1; rooks b5/f8; pawns d3/e5/f7/g7/h7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: c8=Q — pawn c7→c8, promotes to queen. Now Black to move.
2. Best move: Qxf1+ — queen b1→f1, captures rook, gives check. Opponent replies Kxf1 (king g1→f1, captures queen).
3. Best move: Rb1+ — rook b5→b1, gives check. Opponent replies Qc1 (queen c8→c1).
4. Best move: Rxc1+ — rook b1→c1, captures queen, gives check. Opponent replies Bd1 (bishop f3→d1).
5. Best move: Rxd1# — rook c1→d1, captures bishop, delivers checkmate.

Tactical themes

attraction, mate, mate in 4, middlegame, sacrifice, very long. The combination ends with Rxd1# delivering checkmate.

Position data

FEN: 5rk1/2PR1ppp/Q2P4/1r2p3/8/3p1B2/5PPP/1q3RK1 w - - 1 32

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