Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Lasker-Pelikan_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5
Nf6 9. Bg5 Be7 10. Nxe7 Qxe7 11. c4 b4 12. Nc2 h6 13. Bxf6 Qxf6 14. Ne3 O-O 15.
Be2 Nd4 16. O-O Qg6 17. Nd5 Ra7 18. f4 Qxe4 *
Position (FEN): 2b2rk1/r4pp1/p2p3p/3Np3/1pPnqP2/8/PP2B1PP/R2Q1RK1 w - - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1717
Best move: Bd3