Chess Puzzle #IBYN7 — Advanced, Black to move, middlegame

Position

White: king g2; queen f7; bishop e3; pawns a2/b2/e6/f2/g6/h2. Black: king h5; queen g4; pawns a5/b4/c5/h4. White is ahead by 5 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Kf1 — king g2→f1. Now Black to move.
2. Best move: Qd1+ — queen g4→d1, gives check. Opponent replies Kg2 (king f1→g2).
3. Best move: h3+ — pawn h4→h3, gives check. Opponent replies Kxh3 (king g2→h3, captures pawn).
4. Best move: Qg4# — queen d1→g4, delivers checkmate.

Tactical themes

attraction, endgame, long, mate, mate in 3. The combination ends with Qg4# delivering checkmate.

Position data

FEN: 8/5Q2/4P1P1/p1p4k/1p4qp/4B3/PP3PKP/8 w - - 2 36

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