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

Position

White: king c7; rook d5; pawns c5/g5. Black: king a7; rook g1; pawns a4/b7. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: a3 — pawn a4→a3. Now White to move.
2. Best move: c6 — pawn c5→c6. Opponent replies b5 (pawn b7→b5).
3. Best move: Rxb5 — rook d5→b5, captures pawn. Opponent replies Ka6 (king a7→a6).
4. Best move: Rb3 — rook b5→b3. Opponent replies a2 (pawn a3→a2).
5. Best move: Ra3+ — rook b3→a3, gives check.

Tactical themes

crushing, endgame, rook endgame, very long. The key move is c6.

Position data

FEN: 8/kpK5/8/2PR2P1/p7/8/8/6r1 b - - 0 58

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