Chess Puzzle #bmfhc — Master, Black to move, middlegame

Position

White: king b1; queen f7; rooks d1/d3; knight c3; pawns a3/b2/e4/f3/g5/h4. Black: king c6; queen c4; rook b8; knight d4; pawns a6/c5/d6/e6. White is ahead by 7 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: g6 — pawn g5→g6. Now Black to move.
2. Best move: Rxb2+ — rook b8→b2, captures pawn, gives check. Opponent replies Ka1 (king b1→a1).
3. Best move: Rb8 — rook b2→b8. Opponent replies R1d2 (rook d1→d2).
4. Best move: Nb3+ — knight d4→b3, gives check. Opponent replies Kb1 (king a1→b1).
5. Best move: Nxd2+ — knight b3→d2, captures rook, gives check.

Tactical themes

crushing, discovered check, double check, fork, middlegame, quiet move, very long. The key move Rxb2+ captures with check, forcing a response.

Position data

FEN: 1r6/5Q2/p1kpp3/2p3P1/2qnP2P/P1NR1P2/1P6/1K1R4 w - - 1 34

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