Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit
Moves: 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qe3 e5 5. Nf3 Nf6 6. Nc3 Bb4 7. Bd2 d6 8.
Bb5 O-O 9. h4 Ng4 10. Qe2 Bc5 11. Be3 Nxe3 12. fxe3 a6 13. Ba4 b5 14. Bb3 Na5
15. Bd5 Rb8 16. a3 Bb7 17. b4 Bxd5 *
Position (FEN): 1r1q1rk1/5ppp/p2p4/npbbp3/1P2P2P/P1N1PN2/2P1Q1P1/R3K2R w KQ - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1958
Best move: Nxd5