Chess Puzzle #KeHfx — Advanced, White to move, endgame

Position

White: king h1; rooks a8/d1; pawns a5/b7. Black: king g7; rooks e2/g2; pawns d6/f7/g6/h4. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: h3 — pawn h4→h3. Now White to move.
2. Best move: Rg8+ — rook a8→g8, gives check. Opponent replies Kh7 (king g7→h7).
3. Best move: Rh8+ — rook g8→h8, gives check. Opponent replies Kxh8 (king h7→h8, captures rook).
4. Best move: b8=Q+ — pawn b7→b8, promotes to queen, gives check. Opponent replies Kh7 (king h8→h7).
5. Best move: Qxd6 — queen b8→d6, captures pawn.

Tactical themes

advanced pawn, advantage, attraction, endgame, promotion, rook endgame, very long. The key move is Rg8+.

Position data

FEN: R7/1P3pk1/3p2p1/P7/7p/8/4r1r1/3R3K b - - 2 51

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