Chess Puzzle #K0cIQ — Master, Black to move, endgame

Position

White: king g4; rook f6; pawns e6/g7. Black: king c7; rook e3; pawns b7/d2. Material is balanced. Black to move.

Solution (6 moves)

1. Opponent setup: Rf1 — rook f6→f1. Now Black to move.
2. Best move: Re1 — rook e3→e1. Opponent replies Rf7+ (rook f1→f7, gives check).
3. Best move: Kc6 — king c7→c6. Opponent replies Rd7 (rook f7→d7).
4. Best move: d1=Q+ — pawn d2→d1, promotes to queen, gives check. Opponent replies Rxd1 (rook d7→d1, captures queen).
5. Best move: Rxd1 — rook e1→d1, captures rook. Opponent replies e7 (pawn e6→e7).
6. Best move: Rg1+ — rook d1→g1, gives check. Opponent replies Kf5 (king g4→f5).
7. Best move: Kd7 — king c6→d7.

Tactical themes

advanced pawn, crushing, defensive move, endgame, promotion, rook endgame, very long. The key move is Re1.

Position data

FEN: 8/1pk3P1/4PR2/8/6K1/4r3/3p4/8 w - - 0 50

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