Chess Puzzle #eDtSX — Expert, White to move, middlegame

Position

White: king f1; queen g4; rooks a1/e1; knight e4; pawns a2/b2/c2/d4/f2/g2. Black: king f7; queen h2; rooks a8/h8; bishop f8; pawns a7/b7/c6/c7/f6/g6/g7. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: Rh4 — rook h8→h4. Now White to move.
2. Best move: Ng5+ — knight e4→g5, gives check. Opponent replies Kg8 (king f7→g8).
3. Best move: Qe6+ — queen g4→e6, gives check. Opponent replies Kh8 (king g8→h8).
4. Best move: Nf3 — knight g5→f3. Opponent replies Qh1+ (queen h2→h1, gives check).
5. Best move: Ke2 — king f1→e2.

Tactical themes

advantage, fork, middlegame, very long. The key move is Ng5+.

Position data

FEN: r4b1r/ppp2kp1/2p2pp1/8/3PN1Q1/8/PPP2PPq/R3RK2 b - - 1 16

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