Chess Puzzle #UV4Wf — Advanced, White to move, middlegame

Position

White: king g1; queen b2; rooks f2/g2; knights e2/h4; pawns b4/c4/d3/f5/g3/h2. Black: king d7; queen c6; rooks g4/g8; bishops b7/e7; pawns a7/d4/e5/f6/f7/h5. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Rxh4 — rook g4→h4, captures knight. Now White to move.
2. Best move: b5 — pawn b4→b5. Opponent replies Qc8 (queen c6→c8).
3. Best move: gxh4 — pawn g3→h4, captures rook. Opponent replies Rxg2+ (rook g8→g2, captures rook, gives check).
4. Best move: Rxg2 — rook f2→g2, captures rook. Opponent replies Bxg2 (bishop b7→g2, captures rook).
5. Best move: Kxg2 — king g1→g2, captures bishop.

Tactical themes

equality, intermezzo, middlegame, very long. The key move is b5.

Position data

FEN: 6r1/pb1kbp2/2q2p2/4pP1p/1PPp2rN/3P2P1/1Q2NRRP/6K1 b - - 0 26

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