Chess Puzzle #j1zwK — Expert, Black to move, middlegame

Position

White: king g2; queen d8; knight b3; pawns c7/f2/g3/h2. Black: king g7; queen c2; bishop d4; pawns a2/f7/g6/h6. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: c8=Q — pawn c7→c8, promotes to queen. Now Black to move.
2. Best move: Qxf2+ — queen c2→f2, captures pawn, gives check. Opponent replies Kh3 (king g2→h3).
3. Best move: Qf1+ — queen f2→f1, gives check. Opponent replies Kh4 (king h3→h4).
4. Best move: Bf6+ — bishop d4→f6, gives check. Opponent replies Qxf6+ (queen d8→f6, captures bishop, gives check).
5. Best move: Qxf6+ — queen f1→f6, captures queen, gives check.

Tactical themes

crushing, endgame, fork, master, very long. The key move Qxf2+ captures with check, forcing a response.

Position data

FEN: 3Q4/2P2pk1/6pp/8/3b4/1N4P1/p1q2PKP/8 w - - 3 42

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