Chess Puzzle #BOL2q — Advanced, White to move, middlegame

Position

White: king g1; queen f6; rook a1; bishop h7; knight e5; pawns a2/b2/f2/g2/h2. Black: king f8; queen d6; rooks a8/g7; bishop d7; pawns a7/b7/d4/e6/f7. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Qe7 — queen d6→e7. Now White to move.
2. Best move: Ng6+ — knight e5→g6, gives check. Opponent replies Rxg6 (rook g7→g6, captures knight).
3. Best move: Qh8+ — queen f6→h8, gives check. Opponent replies Rg8 (rook g6→g8).
4. Best move: Qxg8# — queen h8→g8, captures rook, delivers checkmate.

Tactical themes

long, mate, mate in 3, middlegame, pin, sacrifice. The combination ends with Qxg8# delivering checkmate.

Position data

FEN: r4k2/pp1b1prB/3qpQ2/4N3/3p4/8/PP3PPP/R5K1 b - - 2 20

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