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

Position

White: king g1; queen g3; rook c7; pawns a2/e4/f2/g2/h3. Black: king h8; queen b2; rook g8; pawns a7/b7/e6/h6/h7. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Qf3 — queen g3→f3. Now Black to move.
2. Best move: Qa1+ — queen b2→a1, gives check. Opponent replies Kh2 (king g1→h2).
3. Best move: Qe5+ — queen a1→e5, gives check. Opponent replies g3 (pawn g2→g3).
4. Best move: Qxc7 — queen e5→c7, captures rook.

Tactical themes

advantage, endgame, fork, long. The key move is Qa1+.

Position data

FEN: 6rk/ppR4p/4p2p/8/4P3/6QP/Pq3PP1/6K1 w - - 3 30

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