Chigaev,M vs Chowdhury,So

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. h3 Nf6 7. Nf3 e6 8. O-O Be7 9. Re1 O-O 10. Nbd2 a6 11. Nf1 b5 12. a3 Bb7 13. Bg5 Rfe8 14. N1h2 Na5 15. Bxf6 Bxf6 16. Ng4 Be7 17. Qc2 h6 18. Nfe5 f5 19. Nh2 Nc4 20. Nhf3 Nd6 21. a4 Bf6 22. Qb3 bxa4 23. Qxa4 Ne4 24. Qa5 Qd6 25. Ng6 Bd8 26. Qa3 Bc7 27. Qxd6 Bxd6 28. Nfe5 Bxe5 29. Nxe5 Red8 30. Ra3 Rd6 31. Rea1 Rb6 32. b4 Rc8 33. Nd7 Rbc6 34. Nc5 Nxc5 35. bxc5 Ra8 36. f4 Kf7 37. Kf2 Kf6 38. Rb1 Bc8 39. Ke3 g5 40. g3 Ra7 41. Rb8 gxf4+ 42. gxf4 Rg7 43. Kf2 h5 44. Ra1 h4 45. Rg1 Rxg1 46. Kxg1 Ke7 47. Kf2 Kd8 48. Ke3 Ke7 49. Kd2 Kd8 50. Kc2 Kd7 51. Rb1 Rc7 52. Rg1 Kc6 53. Rg6 Kb7 54. Kb3 Ka7 55. Ka3 Rh7 56. Rg8 Rc7 57. Kb4 Rb7+ 58. Ka5 Rc7 59. Bc2 Bd7 60. Rg7 Kb8 61. Bd3 e5 62. dxe5 Rxc5+ 63. Kb4 Rc7 64. Bxa6 Be6 65. Rxc7 Kxc7 66. Kc5