Chess Puzzle #0osNn — Beginner, White to move, middlegame

Position

White: king f1; queen h4; rook a1; bishop e1; knight f5; pawns a2/b2/c3/d4/e2/f2/g3. Black: king c8; queen e8; rook g6; bishop c7; knights f6/h5; pawns a7/b7/c6/d5/e4/f7. Black is ahead by 2 points of material. White to move.

Solution (2 moves)

1. Opponent setup: Qg8 — queen e8→g8. Now White to move.
2. Best move: Ne7+ — knight f5→e7, gives check. Opponent replies Kb8 (king c8→b8).
3. Best move: Nxg8 — knight e7→g8, captures queen.

Why this works

After Black's queen retreats to g8, White exploits the exposed king on c8 with 1.Ne7+, a royal fork that checks the king and simultaneously attacks the queen on g8. The knight on e7 controls both c8 (checking the king) and g8 (attacking the queen) — a geometric property of the knight's L-shaped move. Black must respond to the check by moving the king (only 1...Kb8 is legal, since d8 and d7 are controlled by the knight); the queen cannot interpose. After 1...Kb8, White simply plays 2.Nxg8, capturing the undefended queen. Black has no counter-threat or escape because the king is too far from the action.

What to practice

Train recognition of knight forks involving the enemy king and queen. The pattern here — a knight that checks the king while forking the queen on the same move — occurs repeatedly in practical play, especially when the king is confined to one side of the board. Before moving your opponent's pieces or allowing their queen to settle, always scan for knight jumps that fork the king and the queen simultaneously.

Tactical themes

advantage, fork, master, middlegame, short. The key move is Ne7+.

Position data

FEN: 2k1q3/ppb2p2/2p2nr1/3p1N1n/3Pp2Q/2P3P1/PP2PP2/R3BK2 b - - 11 28

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