Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. Be2 a6 4. d4 cxd4 5. Nxd4 Qc7 6. O-O Nf6 7. Nc3 Be7 8.
Be3 b5 9. f4 d6 10. e5 dxe5 11. fxe5 Nfd7 12. Bf3 Bb7 13. a3 O-O 14. Nb3 Nxe5
15. Bf4 Nxf3+ 16. Rxf3 Bxf3 17. Qxf3 Bc5+ 18. Nxc5 *
Position (FEN): rn3rk1/2q2ppp/p3p3/1pN5/5B2/P1N2Q2/1PP3PP/R5K1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 670
Best move: Qxc5+