Chess Puzzle #OArr0 — Expert, Black to move, endgame

Position

White: king f4; rook h7; pawns f5/h2. Black: king c5; knight c3; pawn b3. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Rg7 — rook h7→g7. Now Black to move.
2. Best move: b2 — pawn b3→b2. Opponent replies Rc7+ (rook g7→c7, gives check).
3. Best move: Kb4 — king c5→b4. Opponent replies f6 (pawn f5→f6).
4. Best move: b1=Q — pawn b2→b1, promotes to queen. Opponent replies Rb7+ (rook c7→b7, gives check).
5. Best move: Nb5 — knight c3→b5.

Tactical themes

advanced pawn, crushing, defensive move, endgame, promotion, very long. The key move is b2.

Position data

FEN: 8/7R/8/2k2P2/5K2/1pn5/7P/8 w - - 0 44

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