Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 Qc7 8.
Qf3 e6 9. O-O-O b5 10. e5 Bb7 11. Qg3 dxe5 12. fxe5 Nd5 13. Nxd5 Bxd5 14. Bd3
Rc8 15. Rhf1 Bxa2 *
Position (FEN): 2r1kb1r/2qn1ppp/p3p3/1p2P1B1/3N4/3B2Q1/bPP3PP/2KR1R2 w k - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 2069
Best move: Nxb5