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

Position

White: king f5; rook b8; bishop d6; knight f8; pawns a2/d4. Black: king f7; rook e3; knight d2; pawns d5/f6/g6/h6. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kf4 — king f5→f4. Now Black to move.
2. Best move: Rf3+ — rook e3→f3, gives check. Opponent replies Kg4 (king f4→g4).
3. Best move: f5+ — pawn f6→f5, gives check. Opponent replies Kh4 (king g4→h4).
4. Best move: g5+ — pawn g6→g5, gives check. Opponent replies Kh5 (king h4→h5).
5. Best move: Rh3# — rook f3→h3, delivers checkmate.

Tactical themes

endgame, mate, mate in 4, very long. The combination ends with Rh3# delivering checkmate.

Position data

FEN: 1R3N2/5k2/3B1ppp/3p1K2/3P4/4r3/P2n4/8 w - - 0 42

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