Chess Puzzle #kbFFu — Master, White to move, endgame

Position

White: king g7; rook a1; pawn g6. Black: king d2; knight e2; pawn c2. White is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: c1=Q — pawn c2→c1, promotes to queen. Now White to move.
2. Best move: Rxc1 — rook a1→c1, captures queen. Opponent replies Kxc1 (king d2→c1, captures rook).
3. Best move: Kh8 — king g7→h8. Opponent replies Kd2 (king c1→d2).
4. Best move: g7 — pawn g6→g7. Opponent replies Ng3 (knight e2→g3).
5. Best move: g8=Q — pawn g7→g8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, promotion, very long. The key move Rxc1 wins material.

Position data

FEN: 8/6K1/6P1/8/8/8/2pkn3/R7 b - - 0 56

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