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

Position

White: king g1; queen e5; rook a1; bishops g2/h6; pawns a4/b3/d3/f2/g4/h3. Black: king f7; queen a5; rooks c8/e8; bishop d7; knight d6; pawns a6/b4/d5/e6/g6/h7. Black is ahead by 5 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Ke7 — king f7→e7. Now White to move.
2. Best move: Bg5+ — bishop h6→g5, gives check. Opponent replies Kf7 (king e7→f7).
3. Best move: Qf6+ — queen e5→f6, gives check. Opponent replies Kg8 (king f7→g8).
4. Best move: Bh6 — bishop g5→h6. Opponent replies Re7 (rook e8→e7).
5. Best move: Qxe7 — queen f6→e7, captures rook.

Tactical themes

crushing, middlegame, quiet move, very long. The key move is Bg5+.

Position data

FEN: 2r1r3/3b1k1p/p2np1pB/q2pQ3/Pp4P1/1P1P3P/5PB1/R5K1 b - - 1 28

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