Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Qxd4 Nc6 5. Qa4 d5 6. Bd3 Bd7 7. Qb3 Bd6 8.
Qxb7 Nf6 9. O-O dxe4 10. Bg5 exd3 11. Bxf6 Qxf6 *
Position (FEN): r3k2r/pQ1b1ppp/2nbpq2/8/8/3p1N2/PPP2PPP/RN3RK1 w kq - 0 12
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 845
Best move: Qxa8+