Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Open
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 a6 6. a4 Qb6 7. Nb3 Nf6 8. Be3
Qc7 9. Be2 g6 10. Qd2 Bg7 11. Bh6 O-O 12. h4 Bg4 13. Bxg4 Nxg4 14. Bxg7 Kxg7
15. h5 Qb6 16. O-O-O Nxf2 *
Position (FEN): r4r2/1p2ppkp/pqnp2p1/7P/P3P3/1NN5/1PPQ1nP1/2KR3R w - - 0 17
White to move.
Themes:  Middlegame  
Puzzle rating: 2057
Best move: Nd5