Chess Puzzle #0ZgOQ — Master, Black to move, middlegame

Position

White: king f2; queen e2; rook a1; bishop c1; knight f4; pawns a2/b4/c4/g3/h3. Black: king h8; queen a8; bishops e7/g8; knight g5; pawns a7/b6/c5/d4/g7/h7. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qxe7 — queen e2→e7, captures bishop. Now Black to move.
2. Best move: Qf3+ — queen a8→f3, gives check. Opponent replies Ke1 (king f2→e1).
3. Best move: Qh1+ — queen f3→h1, gives check. Opponent replies Kd2 (king e1→d2).
4. Best move: Ne4+ — knight g5→e4, gives check. Opponent replies Kc2 (king d2→c2).
5. Best move: Qh2+ — queen h1→h2, gives check.

Tactical themes

advantage, middlegame, very long. The key move is Qf3+.

Position data

FEN: q5bk/p3b1pp/1p6/2p3n1/1PPp1N2/6PP/P3QK2/R1B5 w - - 0 25

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