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

Position

White: king g1; queen f3; rooks a1/f1; bishops c3/d3; knight g5; pawns a3/b3/c2/d4/f2/h2. Black: king g7; queen d8; rooks a8/h6; bishop c8; knights b6/g6; pawns a7/b7/c7/d5/e6. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Bxg6 — bishop d3→g6, captures knight. Now Black to move.
2. Best move: Qxg5+ — queen d8→g5, captures knight, gives check. Opponent replies Kh1 (king g1→h1).
3. Best move: Rxg6 — rook h6→g6, captures bishop. Opponent replies Rg1 (rook f1→g1).
4. Best move: Qf5 — queen g5→f5. Opponent replies Rxg6+ (rook g1→g6, captures rook, gives check).
5. Best move: Kxg6 — king g7→g6, captures rook.

Tactical themes

equality, fork, hanging piece, intermezzo, middlegame, very long. The key move Qxg5+ captures with check, forcing a response.

Position data

FEN: r1bq4/ppp3k1/1n2p1nr/3p2N1/3P4/PPBB1Q2/2P2P1P/R4RK1 w - - 7 21

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