Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Taimanov_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be3 Qc7 7. Be2 Nf6 8.
O-O Be7 9. f4 d6 10. g4 Nxd4 11. Bxd4 e5 12. fxe5 dxe5 13. Be3 Bc5 14. Bxc5
Qxc5+ 15. Kh1 b5 16. g5 Nd7 17. Nd5 O-O 18. Nf6+ *
Position (FEN): r1b2rk1/3n1ppp/p4N2/1pq1p1P1/4P3/8/PPP1B2P/R2Q1R1K b - - 4 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1480
Best move: gxf6