Chess Puzzle #LvX7M — Intermediate, White to move, endgame

Position

White: king c2; rook a7; bishop d4; pawn b6. Black: king b7; rook h3; knight e5; pawns d6/f7/g6/h7. Black is ahead by 3 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Kc6 — king b7→c6. Now White to move.
2. Best move: Rc7+ — rook a7→c7, gives check. Opponent replies Kb5 (king c6→b5).
3. Best move: b7 — pawn b6→b7. Opponent replies Nc6 (knight e5→c6).
4. Best move: Rxc6 — rook c7→c6, captures knight. Opponent replies Kxc6 (king b5→c6, captures rook).
5. Best move: b8=Q — pawn b7→b8, promotes to queen.

Tactical themes

advanced pawn, advantage, endgame, promotion, very long. The key move is Rc7+.

Position data

FEN: 8/Rk3p1p/1P1p2p1/4n3/3B4/7r/2K5/8 b - - 2 36

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