Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. c3 Nc6 4. d4 cxd4 5. cxd4 d6 6. Nc3 Nf6 7. Be2 Be7 8. O-O
O-O 9. a3 b6 10. b4 Bb7 11. Bb2 Nd7 12. Bd3 f5 13. Qb3 fxe4 14. Qxe6+ Kh8 15.
Bxe4 Nf6 16. Ng5 Qe8 17. Nd5 Nxe4 18. Nxe4 Rc8 19. Nxd6 *
Position (FEN): 2r1qr1k/pb2b1pp/1pnNQ3/3N4/1P1P4/P7/1B3PPP/R4RK1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1105
Best move: Bxd6