Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Classical_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Rg1 Nxd4 7. Qxd4 a6 8.
Bg5 h6 9. Bxf6 gxf6 10. O-O-O Bg7 11. Nd5 b5 12. g4 Be6 13. Qe3 Qa5 14. Kb1 Rc8
15. f4 Bxd5 16. Rxd5 f5 *
Position (FEN): 2r1k2r/4ppb1/p2p3p/qp1R1p2/4PPP1/4Q3/PPP4P/1K3BR1 w k - 0 17
White to move.
Themes:  Middlegame  
Puzzle rating: 1806
Best move: gxf5