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

Position

White: king g2; queen d4; rook g1; pawns a2/b3/d3/e2/f2/g3. Black: king f8; queen h6; rook h8; pawns a7/e6/f7/g4. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kf1 — king g2→f1. Now Black to move.
2. Best move: Qc1+ — queen h6→c1, gives check. Opponent replies Kg2 (king f1→g2).
3. Best move: Rh2+ — rook h8→h2, gives check. Opponent replies Kxh2 (king g2→h2, captures rook).
4. Best move: Qh6+ — queen c1→h6, gives check. Opponent replies Kg2 (king h2→g2).
5. Best move: Qh3# — queen h6→h3, delivers checkmate.

Tactical themes

attraction, endgame, mate, mate in 4, sacrifice, very long. The combination ends with Qh3# delivering checkmate.

Position data

FEN: 5k1r/p4p2/4p2q/8/3Q2p1/1P1P2P1/P3PPK1/6R1 w - - 0 29

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