Chess Puzzle #Qq62r — Master, White to move, middlegame

Position

White: king h1; queen c2; rook a1; bishop c1; knight e4; pawns a3/b6/c4/d3/f2. Black: king c8; queen b7; rooks g8/h8; knight f3; pawns a7/d4/e6/g4/h5. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: h4 — pawn h5→h4. Now White to move.
2. Best move: Nd6+ — knight e4→d6, gives check. Opponent replies Kb8 (king c8→b8).
3. Best move: Nxb7 — knight d6→b7, captures queen. Opponent replies g3 (pawn g4→g3).
4. Best move: Bf4+ — bishop c1→f4, gives check. Opponent replies Kxb7 (king b8→b7, captures knight).
5. Best move: Kg2 — king h1→g2.

Tactical themes

advantage, exposed king, fork, middlegame, very long. The key move is Nd6+.

Position data

FEN: 2k3rr/pq6/1P2p3/7p/2PpN1p1/P2P1n2/2Q2P2/R1B4K b - - 2 29

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