Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 d6 3. Bc4 Nc6 4. d3 Nf6 5. f4 Bg4 6. Nf3 a6 7. a4 Nd4 8. O-O
Nxf3+ 9. gxf3 Bh3 10. Rf2 e6 11. d4 Nh5 12. Bf1 Qh4 13. Bxh3 Qxh3 14. Rg2 Be7
15. e5 Rd8 16. Ne4 cxd4 *
Position (FEN): 3rk2r/1p2bppp/p2pp3/4P2n/P2pNP2/5P1q/1PP3RP/R1BQ2K1 w k - 0 17
White to move.
Themes:  Middlegame  
Puzzle rating: 1846
Best move: Rg4