Chess Puzzle #Fyv3C — Intermediate, White to move, endgame

Position

White: king f6; rook b2; pawns g3/h5. Black: king e3; rook g4; pawns e6/f5. Material is balanced. White to move.

Solution (5 moves)

1. Opponent setup: Rxg3 — rook g4→g3, captures pawn. Now White to move.
2. Best move: Rb3+ — rook b2→b3, gives check. Opponent replies Kf2 (king e3→f2).
3. Best move: Rxg3 — rook b3→g3, captures rook. Opponent replies Kxg3 (king f2→g3, captures rook).
4. Best move: h6 — pawn h5→h6. Opponent replies f4 (pawn f5→f4).
5. Best move: h7 — pawn h6→h7. Opponent replies f3 (pawn f4→f3).
6. Best move: h8=Q — pawn h7→h8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, promotion, rook endgame, very long. The key move is Rb3+.

Position data

FEN: 8/8/4pK2/5p1P/6r1/4k1P1/1R6/8 b - - 2 49

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