Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Open
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 Nf6 6. Bc4 d6 7. O-O e6 8.
Qe2 Be7 9. Rd1 Qc7 10. Bf4 e5 11. Bg5 O-O 12. Rac1 Bg4 13. Bxf6 Bxf6 14. Nb5
Qb6 15. Rxd6 a6 16. Rxf6 gxf6 17. h3 Nd4 *
Position (FEN): r4rk1/1p3p1p/pq3p2/1N2p3/2BnP1b1/5N1P/PP2QPP1/2R3K1 w - - 1 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1715
Best move: Nbxd4