Chess puzzle (Advantage)
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Bxd3 6. Qxd3 Nd7 7. Bg5 Ne7 8. O-O
h6 9. Bh4 Qc7 10. c3 g5 11. Bg3 Nf5 12. Nbd2 Nxg3 13. fxg3 O-O-O 14. b4 f5 15.
a4 g4 16. Nh4 Be7 17. a5 Bxh4 18. gxh4 a6 19. Rfb1 g3 20. hxg3 Rdg8 21. Nf1 Rg4
22. b5 Rhg8 23. bxa6 bxa6 24. Qxa6+ Kd8 25. Qb6 *
Position (FEN): 3k2r1/2qn4/1Qp1p2p/P2pPp2/3P2rP/2P3P1/6P1/RR3NK1 b - - 2 25
Black to move.
Themes:  Middlegame  
Puzzle rating: 1359
Best move: Nxb6