Chess Puzzle #IhGtS — Advanced, Black to move, middlegame

Position

White: king f1; queen f7; rooks a1/h1; knight b1; pawns a3/b2/c3/f2/g3/h6. Black: king h8; queen g5; rooks d8/e7; pawns a7/b7/c7/g6. White is ahead by 5 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qf4 — queen f7→f4. Now Black to move.
2. Best move: Rd1+ — rook d8→d1, gives check. Opponent replies Kg2 (king f1→g2).
3. Best move: Qd5+ — queen g5→d5, gives check. Opponent replies Qf3 (queen f4→f3).
4. Best move: Qxf3+ — queen d5→f3, captures queen, gives check. Opponent replies Kxf3 (king g2→f3, captures queen).
5. Best move: Rxh1 — rook d1→h1, captures rook.

Tactical themes

advantage, middlegame, very long. The key move Qxf3+ captures with check, forcing a response.

Position data

FEN: 3r3k/ppp1rQ2/6pP/6q1/8/P1P3P1/1P3P2/RN3K1R w - - 1 26

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