Chess Puzzle #OgmmP — Expert, White to move, middlegame

Position

White: king e3; queen b2; pawns b4/d4/e5/f5/g5. Black: king b8; queen c4; knight e4; pawns b7/d5/e6/f7/g7. Black is ahead by 3 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Qc3+ — queen c4→c3, gives check. Now White to move.
2. Best move: Qxc3 — queen b2→c3, captures queen. Opponent replies Nxc3 (knight e4→c3, captures queen).
3. Best move: g6 — pawn g5→g6. Opponent replies fxg6 (pawn f7→g6, captures pawn).
4. Best move: f6 — pawn f5→f6. Opponent replies gxf6 (pawn g7→f6, captures pawn).
5. Best move: exf6 — pawn e5→f6, captures pawn. Opponent replies Kc7 (king b8→c7).
6. Best move: f7 — pawn f6→f7.

Tactical themes

advanced pawn, crushing, endgame, very long. The key move Qxc3 wins material.

Position data

FEN: 1k6/1p3pp1/4p3/3pPPP1/1PqPn3/4K3/1Q6/8 b - - 4 37

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