Chess Puzzle #IC8H9 — Expert, White to move, endgame

Position

White: king b5; pawns a7/b6/c5. Black: king b7; rook f5. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Rf6 — rook f5→f6. Now White to move.
2. Best move: c6+ — pawn c5→c6, gives check. Opponent replies Ka8 (king b7→a8).
3. Best move: c7 — pawn c6→c7. Opponent replies Rxb6+ (rook f6→b6, captures pawn, gives check).
4. Best move: Kc5 — king b5→c5. Opponent replies Kxa7 (king a8→a7, captures pawn).
5. Best move: c8=Q — pawn c7→c8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, promotion, rook endgame, very long. The key move is c6+.

Position data

FEN: 8/Pk6/1P6/1KP2r2/8/8/8/8 b - - 2 63

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