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

Position

White: king g1; queen d1; rooks a1/f1; bishops b6/c4; knight a3; pawns a2/b2/c3/f2/g2/h2. Black: king g6; queen c8; rook h8; bishop e7; knights c6/g5; pawns a6/b7/d6/e5/f3/g7/h5. White is ahead by 4 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Be3 — bishop b6→e3. Now Black to move.
2. Best move: Qg4 — queen c8→g4. Opponent replies Bd3+ (bishop c4→d3, gives check).
3. Best move: Kf7 — king g6→f7. Opponent replies Qxf3+ (queen d1→f3, captures pawn, gives check).
4. Best move: Nxf3+ — knight g5→f3, captures queen, gives check.

Tactical themes

advantage, defensive move, long, middlegame, pin. The key move Nxf3+ captures with check, forcing a response.

Position data

FEN: 2q4r/1p2b1p1/pBnp2k1/4p1np/2B5/N1P2p2/PP3PPP/R2Q1RK1 w - - 0 21

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