Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Staunton-Cochrane_Variation
Moves: 1. e4 c5 2. c4 d6 3. h3 Nf6 4. d3 g6 5. Nf3 Bg7 6. Be2 Nc6 7. Nc3 a6 8. O-O O-O
9. b3 e6 10. Bg5 Qa5 11. Qc1 Nh5 12. Bd2 Nd4 13. Rb1 *
Position (FEN): r1b2rk1/1p3pbp/p2pp1p1/q1p4n/2PnP3/1PNP1N1P/P2BBPP1/1RQ2RK1 b - - 7 13
Black to move.
Themes:  Opening  
Puzzle rating: 1649
Best move: Qxc3