Chess Puzzle #Fiio9 — Advanced, Black to move, middlegame

Position

White: king g1; queen d4; bishop g4; pawns e4/f2/g2/h6. Black: king g8; rooks a8/c6; pawns a4/b3/f6/f7/h7. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Qd5 — queen d4→d5. Now Black to move.
2. Best move: b2 — pawn b3→b2. Opponent replies Qxc6 (queen d5→c6, captures rook).
3. Best move: b1=Q+ — pawn b2→b1, promotes to queen, gives check. Opponent replies Kh2 (king g1→h2).
4. Best move: Qb8+ — queen b1→b8, gives check.

Tactical themes

advanced pawn, advantage, endgame, long, promotion. The key move is b2.

Position data

FEN: r5k1/5p1p/2r2p1P/8/p2QP1B1/1p6/5PP1/6K1 w - - 0 33

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