Chess Puzzle #qbSfw — Master, White to move, middlegame

Position

White: king a1; queen f4; rooks e1/g4; bishop e3; pawns a2/c2/d5/f3/g5/h4. Black: king h7; queen a5; rooks b8/f8; bishop e7; knight b2; pawns a6/c3/d6/f7/g7. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Qa3 — queen a5→a3. Now White to move.
2. Best move: Bc1 — bishop e3→c1. Opponent replies Kg8 (king h7→g8).
3. Best move: Rxe7 — rook e1→e7, captures bishop. Opponent replies Rb5 (rook b8→b5).
4. Best move: g6 — pawn g5→g6. Opponent replies Ra5 (rook b5→a5).
5. Best move: gxf7+ — pawn g6→f7, captures pawn, gives check.

Tactical themes

advanced pawn, discovered attack, equality, middlegame, very long. The key move gxf7+ captures with check, forcing a response.

Position data

FEN: 1r3r2/4bppk/p2p4/q2P2P1/5QRP/2p1BP2/PnP5/K3R3 b - - 1 26

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