Chess Puzzle #jJ8Mo — Advanced, White to move, middlegame

Position

White: king h1; rook g2; pawns a4/b4/c3/d4/h2. Black: king h8; rook g8; bishop g5; pawns b6/c7/d5/f6/h6. Black is ahead by 3 points of material. White to move.

Solution (6 moves)

1. Opponent setup: Be3 — bishop g5→e3. Now White to move.
2. Best move: Rxg8+ — rook g2→g8, captures rook, gives check. Opponent replies Kxg8 (king h8→g8, captures rook).
3. Best move: a5 — pawn a4→a5. Opponent replies bxa5 (pawn b6→a5, captures pawn).
4. Best move: bxa5 — pawn b4→a5, captures pawn. Opponent replies c5 (pawn c7→c5).
5. Best move: a6 — pawn a5→a6. Opponent replies cxd4 (pawn c5→d4, captures pawn).
6. Best move: a7 — pawn a6→a7. Opponent replies dxc3 (pawn d4→c3, captures pawn).
7. Best move: a8=Q+ — pawn a7→a8, promotes to queen, gives check.

Tactical themes

advanced pawn, crushing, endgame, promotion, very long. The key move Rxg8+ captures with check, forcing a response.

Position data

FEN: 6rk/2p5/1p3p1p/3p2b1/PP1P4/2P5/6RP/7K b - - 1 37

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