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. Bd3 e5 7. Nf3 Be7 8. h3
Be6 9. O-O Nbd7 10. Ng5 O-O 11. f4 exf4 12. Bxf4 h6 13. Nxe6 fxe6 14. Bc4 Kf7
15. Bxd6 *
Position (FEN): r2q1r2/1p1nbkp1/p2Bpn1p/8/2B1P3/2N4P/PPP3P1/R2Q1RK1 b - - 0 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1119
Best move: Qb6+