Chess Puzzle #2cL7g — Advanced, White to move, endgame

Position

White: king c2; pawns a7/b5. Black: king g2; rook f3; pawn h3. Black is ahead by 4 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Ra3 — rook f3→a3. Now White to move.
2. Best move: b6 — pawn b5→b6. Opponent replies h2 (pawn h3→h2).
3. Best move: b7 — pawn b6→b7. Opponent replies Ra2+ (rook a3→a2, gives check).
4. Best move: Kb3 — king c2→b3. Opponent replies Rxa7 (rook a2→a7, captures pawn).
5. Best move: b8=Q — pawn b7→b8, promotes to queen. Opponent replies h1=Q (pawn h2→h1, promotes to queen).
6. Best move: Qxa7 — queen b8→a7, captures rook.

Tactical themes

advanced pawn, defensive move, endgame, equality, promotion, rook endgame, very long. The key move is b6.

Position data

FEN: 8/P7/8/1P6/8/5r1p/2K3k1/8 b - - 0 59

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