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

Position

White: king g1; queen c2; rook a8; bishop d3; knight d2; pawns b6/c5/d4/f2/g3/h3. Black: king g8; queen c8; rook e7; bishop d5; knight b8; pawns b7/c6/f6/f7/g6/h6. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: Bxg6 — bishop d3→g6, captures pawn. Now Black to move.
2. Best move: Re1+ — rook e7→e1, gives check. Opponent replies Nf1 (knight d2→f1).
3. Best move: Qxh3 — queen c8→h3, captures pawn. Opponent replies Bxf7+ (bishop g6→f7, captures pawn, gives check).
4. Best move: Kxf7 — king g8→f7, captures bishop. Opponent replies Qh7+ (queen c2→h7, gives check).
5. Best move: Ke6 — king f7→e6.

Tactical themes

crushing, defensive move, middlegame, very long. The key move is Re1+.

Position data

FEN: Rnq3k1/1p2rp2/1Pp2ppp/2Pb4/3P4/3B2PP/2QN1P2/6K1 w - - 0 26

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