Chess Puzzle #2W8cD — Intermediate, White to move, endgame

Position

White: king f7; knight e8; pawns f3/g6. Black: king h8; bishop g7; pawn e4. White is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: exf3 — pawn e4→f3, captures pawn. Now White to move.
2. Best move: Nxg7 — knight e8→g7, captures bishop. Opponent replies f2 (pawn f3→f2).
3. Best move: Nf5 — knight g7→f5. Opponent replies f1=Q (pawn f2→f1, promotes to queen).
4. Best move: g7+ — pawn g6→g7, gives check. Opponent replies Kh7 (king h8→h7).
5. Best move: g8=Q# — pawn g7→g8, promotes to queen, delivers checkmate.

Tactical themes

advanced pawn, endgame, exposed king, mate, mate in 4, promotion, quiet move, very long. The combination ends with g8=Q# delivering checkmate.

Position data

FEN: 4N2k/5Kb1/6P1/8/4p3/5P2/8/8 b - - 1 75

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