Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 d6 3. Bc4 Nf6 4. a3 Bg4 5. f3 Be6 6. Bxe6 fxe6 7. d4 cxd4 8.
Qxd4 Nc6 9. Qa4 g6 10. Be3 Bg7 11. O-O-O O-O 12. f4 Nd7 13. Nce2 Qc7 14. Qc4
Rf6 15. Nf3 Rc8 16. Ng5 Ncb8 17. Qb3 Nb6 18. Nxe6 *
Position (FEN): 1nr3k1/ppq1p1bp/1n1pNrp1/8/4PP2/PQ2B3/1PP1N1PP/2KR3R b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 2208
Best move: Qc4