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

Position

White: king h2; queen c5; bishop g5; pawns a5/c3/c4/d5/h4. Black: king h7; queen e2; bishop g6; pawns a6/b7/e4/g7. White is ahead by 1 point of material. Black to move.

Solution (7 moves)

1. Opponent setup: Kh3 — king h2→h3. Now Black to move.
2. Best move: Bf5+ — bishop g6→f5, gives check. Opponent replies Kg3 (king h3→g3).
3. Best move: Qf3+ — queen e2→f3, gives check. Opponent replies Kh2 (king g3→h2).
4. Best move: Qh3+ — queen f3→h3, gives check. Opponent replies Kg1 (king h2→g1).
5. Best move: Qg3+ — queen h3→g3, gives check. Opponent replies Kf1 (king g1→f1).
6. Best move: e3 — pawn e4→e3. Opponent replies Qxe3 (queen c5→e3, captures pawn).
7. Best move: Bd3+ — bishop f5→d3, gives check. Opponent replies Qxd3+ (queen e3→d3, captures bishop, gives check).
8. Best move: Qxd3+ — queen g3→d3, captures queen, gives check.

Tactical themes

clearance, crushing, endgame, very long, X-ray attack. The key move Qxd3+ captures with check, forcing a response.

Position data

FEN: 8/1p4pk/p5b1/P1QP2B1/2P1p2P/2P5/4q2K/8 w - - 1 39

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