Chess Puzzle #kgdz3 — Expert, Black to move, middlegame

Position

White: king c2; queen f3; rooks f1/g1; bishop h6; pawns b2/h4. Black: king h8; queen a4; rook e8; knight f6; pawns a7/b6/c3/c5/g7. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: b3 — pawn b2→b3. Now Black to move.
2. Best move: Qa2+ — queen a4→a2, gives check. Opponent replies Kd3 (king c2→d3).
3. Best move: Rd8+ — rook e8→d8, gives check. Opponent replies Kxc3 (king d3→c3, captures pawn).
4. Best move: Nd5+ — knight f6→d5, gives check. Opponent replies Qxd5 (queen f3→d5, captures knight).
5. Best move: Rxd5 — rook d8→d5, captures queen.

Tactical themes

advantage, middlegame, very long. The key move is Qa2+.

Position data

FEN: 4r2k/p5p1/1p3n1B/2p5/q6P/2p2Q2/1PK5/5RR1 w - - 2 33

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