Chess Puzzle #MmhuU — Expert, White to move, middlegame

Position

White: king c2; queen a8; rook a1; bishops c1/c4; pawns a2/b2/c3/d3/f3/g4/h3. Black: king e6; queen e1; rooks d8/h8; bishop g6; knight e2; pawns b7/c7/e5/f7/g7/h6. Black is ahead by 4 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Ke7 — king e6→e7. Now White to move.
2. Best move: Bg5+ — bishop c1→g5, gives check. Opponent replies hxg5 (pawn h6→g5, captures bishop).
3. Best move: Qa3+ — queen a8→a3, gives check. Opponent replies Kf6 (king e7→f6).
4. Best move: Rxe1 — rook a1→e1, captures queen.

Tactical themes

advantage, long, middlegame, sacrifice. The key move is Bg5+.

Position data

FEN: Q2r3r/1pp2pp1/4k1bp/4p3/2B3P1/2PP1P1P/PPK1n3/R1B1q3 b - - 6 23

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