Chess Puzzle #eIF13 — Master, Black to move, endgame

Position

White: king h1; rooks a3/e8; pawn a7. Black: king d7; rook b2; pawns b6/g3/h2. White is ahead by 3 points of material. Black to move.

Solution (6 moves)

1. Opponent setup: a8=Q — pawn a7→a8, promotes to queen. Now Black to move.
2. Best move: Rb1+ — rook b2→b1, gives check. Opponent replies Kg2 (king h1→g2).
3. Best move: h1=Q+ — pawn h2→h1, promotes to queen, gives check. Opponent replies Kxg3 (king g2→g3, captures pawn).
4. Best move: Rg1+ — rook b1→g1, gives check. Opponent replies Kf2 (king g3→f2).
5. Best move: Qh2+ — queen h1→h2, gives check. Opponent replies Ke3 (king f2→e3).
6. Best move: Re1+ — rook g1→e1, gives check. Opponent replies Kd3 (king e3→d3).
7. Best move: Qg3+ — queen h2→g3, gives check.

Tactical themes

advanced pawn, crushing, endgame, exposed king, promotion, queen rook endgame, very long. The key move is Rb1+.

Position data

FEN: 4R3/P2k4/1p6/8/8/R5p1/1r5p/7K w - - 2 40

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