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

Position

White: king g2; rook f1; bishop c3; knight d3; pawns a3/b2/f2/h2. Black: king h7; rook f4; knight h4; pawns b5/e5/f6/g7/h5. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kh3 — king g2→h3. Now Black to move.
2. Best move: Rf3+ — rook f4→f3, gives check. Opponent replies Kxh4 (king h3→h4, captures knight).
3. Best move: Kh6 — king h7→h6. Opponent replies Rg1 (rook f1→g1).
4. Best move: g5+ — pawn g7→g5, gives check. Opponent replies Rxg5 (rook g1→g5, captures pawn).
5. Best move: fxg5# — pawn f6→g5, captures rook, delivers checkmate.

Tactical themes

endgame, exposed king, fork, mate, mate in 4, sacrifice, very long. The combination ends with fxg5# delivering checkmate.

Position data

FEN: 8/6pk/5p2/1p2p2p/5r1n/P1BN4/1P3PKP/5R2 w - - 2 41

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