Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Chekhover_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Bg5 Nc6 6. Qd2 h6 7. Bh4 g5 8. Bg3
Bg7 9. c3 Nf6 10. Bd3 Be6 11. Qe3 Qa5 12. Nbd2 Qc7 13. h3 b5 14. O-O O-O 15. a4
bxa4 16. Rxa4 Rfb8 17. Rb1 Nd7 18. Raa1 Nc5 *
Position (FEN): rr4k1/2q1ppb1/p1npb2p/2n3p1/4P3/2PBQNBP/1P1N1PP1/RR4K1 w - - 5 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1916
Best move: Qxc5