Chess Puzzle #JsgW2 — Expert, Black to move, middlegame

Position

White: king g1; queen d2; knight f4; pawns c3/e5/f3/g5. Black: king g8; queen b3; pawns a3/b6/c5/e6/f7/g7. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: g6 — pawn g5→g6. Now Black to move.
2. Best move: Qb1+ — queen b3→b1, gives check. Opponent replies Kf2 (king g1→f2).
3. Best move: Qb2 — queen b1→b2. Opponent replies Qxb2 (queen d2→b2, captures queen).
4. Best move: axb2 — pawn a3→b2, captures queen.

Tactical themes

advanced pawn, crushing, endgame, long. The key move is Qb1+.

Position data

FEN: 6k1/5pp1/1p2p3/2p1P1P1/5N2/pqP2P2/3Q4/6K1 w - - 0 34

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