Chess Puzzle #zEYOA — Master, Black to move, endgame

Position

White: king e5; rook f7; pawns d7/g7. Black: king c7; rook g2; pawns a6/b3. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: g8=Q — pawn g7→g8, promotes to queen. Now Black to move.
2. Best move: Rxg8 — rook g2→g8, captures queen. Opponent replies Kd4 (king e5→d4).
3. Best move: a5 — pawn a6→a5. Opponent replies d8=Q+ (pawn d7→d8, promotes to queen, gives check).
4. Best move: Kxd8 — king c7→d8, captures queen. Opponent replies Kc4 (king d4→c4).
5. Best move: a4 — pawn a5→a4.

Tactical themes

crushing, defensive move, endgame, hanging piece, quiet move, very long. The key move Rxg8 wins material.

Position data

FEN: 8/2kP1RP1/p7/4K3/8/1p6/6r1/8 w - - 1 49

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