Chess Puzzle #SXjPu — Advanced, Black to move, endgame

Position

White: king h3; rook a6; bishop c5; pawns d4/f4/g3/h2. Black: king d5; queen g1; pawns a4/f5/h6. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Rxa4 — rook a6→a4, captures pawn. Now Black to move.
2. Best move: Qf1+ — queen g1→f1, gives check. Opponent replies Kh4 (king h3→h4).
3. Best move: Qd1 — queen f1→d1. Opponent replies h3 (pawn h2→h3).
4. Best move: Qxa4 — queen d1→a4, captures rook.

Tactical themes

crushing, endgame, long. The key move is Qf1+.

Position data

FEN: 8/8/R6p/2Bk1p2/p2P1P2/6PK/7P/6q1 w - - 1 45

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