Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Staunton-Cochrane_Variation
Moves: 1. c4 c5 2. e4 Nc6 3. d3 g6 4. Nf3 Bg7 5. Be2 Qa5+ 6. Nc3 Bxc3+ 7. bxc3 Qxc3+
8. Bd2 Qf6 9. Qb1 e6 10. O-O Nge7 11. Qc1 h6 12. Bxh6 Ne5 13. Bg5 Qg7 14. Nxe5
Qxe5 15. f4 Qd4+ 16. Kh1 b6 17. Qd2 *
Position (FEN): r1b1k2r/p2pnp2/1p2p1p1/2p3B1/2PqPP2/3P4/P2QB1PP/R4R1K b kq - 1 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 1692
Best move: f6