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

Position

White: king e1; queen a8; rook a1; bishop b2; knight e3; pawns a2/b3/c2/d2/f2. Black: king d7; queen g1; bishop d6; knight e5; pawns a7/b7/c7/e4/f7/g7. White is ahead by 4 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: Nf1 — knight e3→f1. Now Black to move.
2. Best move: Nf3+ — knight e5→f3, gives check. Opponent replies Ke2 (king e1→e2).
3. Best move: Qg4 — queen g1→g4. Opponent replies Ne3 (knight f1→e3).
4. Best move: Nd4+ — knight f3→d4, gives check. Opponent replies Kf1 (king e2→f1).
5. Best move: Qh3+ — queen g4→h3, gives check. Opponent replies Ke1 (king f1→e1).
6. Best move: Qh1+ — queen h3→h1, gives check.

Tactical themes

crushing, double check, master, middlegame, quiet move, very long. The key move is Nf3+.

Position data

FEN: Q7/pppk1pp1/3b4/4n3/4p3/1P2N3/PBPP1P2/R3K1q1 w Q - 0 18

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