Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 7. Nxc6 bxc6 8.
g4 e5 9. Bc4 Be7 10. g5 Nd7 11. Qf3 O-O 12. h4 Nc5 13. g6 Be6 14. gxh7+ Kh8 15.
Bxe6 fxe6 16. Qg4 d5 17. Rg1 Bf6 18. Be3 *
Position (FEN): r2q1r1k/6pP/p1p1pb2/2npp3/4P1QP/2N1B3/PPP2P2/R3K1R1 b Q - 3 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1357
Best move: d4