Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Nf6
8. f3 Bd6 9. Nc3 Bd7 10. Bg5 Nh5 11. g3 h6 12. Be3 O-O-O 13. O-O-O g6 14. f4 f6
15. f5 g5 16. Nf3 Rde8 17. Bd4 c5 18. Be3 Bc6 19. Nd2 b6 20. Rde1 Be5 21. Nd5
Ng7 22. g4 h5 23. h3 hxg4 24. hxg4 Rxh1 25. Rxh1 Bxd5 26. exd5 Bxb2+ 27. Kxb2
Rxe3 28. Rh8+ Kb7 29. Rf8 Ne8 30. Nc4 Re4 31. Nd2 Re2 32. Kc3 b5 33. Kd3 Re7
34. Ne4 c4+ 35. Kd4 Kb6 36. Nxf6 Nd6 37. Rb8+ Ka5 38. Rg8 Re2 39. c3 Rd2+ 40.
Kc5 Ka4 41. Rxg5 *
Position (FEN): 8/2p5/p2n1N2/1pKP1PR1/k1p3P1/2P5/P2r4/8 b - - 0 41
Black to move.
Themes:  Endgame  
Puzzle rating: 2145
Best move: b4