Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Accelerated_Dragon
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. c3 Qb6 7. Qd2 Qd8 8.
Na3 Nf6 9. f3 a6 10. Nc4 d5 11. exd5 Nxd5 12. Nxc6 bxc6 13. Bh6 O-O 14. Bxg7
Kxg7 15. O-O-O Be6 16. Ne5 Qc7 17. Qe2 Nf6 18. b3 Qa5 19. Nxc6 *
Position (FEN): r4r2/4ppkp/p1N1bnp1/q7/8/1PP2P2/P3Q1PP/2KR1B1R b - - 0 19
Black to move.
Themes: Queenside Attack Middlegame  
Puzzle rating: 1788
Best move: Qxc3+