Chess Puzzle #TRMq8 — Master, Black to move, endgame

Position

White: king g3; rook h7; pawns f5/g4. Black: king c6; rook c5; pawn b4. White is ahead by 1 point of material. Black to move.

Solution (6 moves)

1. Opponent setup: Kh4 — king g3→h4. Now Black to move.
2. Best move: b3 — pawn b4→b3. Opponent replies Rh8 (rook h7→h8).
3. Best move: Kb7 — king c6→b7. Opponent replies f6 (pawn f5→f6).
4. Best move: b2 — pawn b3→b2. Opponent replies f7 (pawn f6→f7).
5. Best move: b1=Q — pawn b2→b1, promotes to queen. Opponent replies Rb8+ (rook h8→b8, gives check).
6. Best move: Kxb8 — king b7→b8, captures rook. Opponent replies f8=Q+ (pawn f7→f8, promotes to queen, gives check).
7. Best move: Rc8 — rook c5→c8.

Tactical themes

advanced pawn, crushing, endgame, promotion, rook endgame, very long. The key move is b3.

Position data

FEN: 8/7R/2k5/2r2P2/1p4P1/6K1/8/8 w - - 0 38

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