ChessOnlineFree.com Replay and analyse vq20cscw

[Event "Rated game"]
[Site "/vq20cscw"]
[Date "2020-05-21"]
[White "FrlMergenthaler"]
[Black "Karpov"]
[Result "1/2-1/2"]
[WhiteElo "1524"]
[BlackElo "1499"]
[PlyCount "162"]
[Variant "standard"]

1. d4 Nf6 2. c4 c5 3. e3 Qa5+ 4. Bd2 Qb6 5. Bc3 cxd4 6. exd4 Nc6 7. Be2 e6 8. Nf3 Bb4 9. Qc2 Bxc3+ 10. Nxc3 Nxd4 11. Nxd4 Qxd4 12. O-O O-O 13. Rfe1 b6 14. Rad1 Qc5 15. Bf3 Rb8 16. Nb5 a6 17. Nd6 Ne8 18. a3 Nxd6 19. Qd3 Nxc4 20. Rc1 Qb5 21. Qxc4 Qxc4 22. Rxc4 d5 23. Rc7 Rb7 24. Rec1 Rxc7 25. Rxc7 a5 26. Be2 g6 27. Rc6 Kg7 28. Rxb6 f6 29. Bb5 e5 30. Rc6 Bb7 31. Rc7+ Rf7 32. Rxf7+ Kxf7 33. b3 d4 34. b4 axb4 35. axb4 Be4 36. Kf1 d3 37. f3 Bf5 38. Ke1 e4 39. fxe4 Bxe4 40. g3 f5 41. Kd2 Kf6 42. Bxd3 Bxd3 43. Kxd3 Ke5 44. Kc4 Kd6 45. Kb5 g5 46. Ka6 f4 47. b5 f3 48. b6 f2 49. b7 Kc7 50. Ka7 f1=Q 51. b8=Q+ Kd7 52. Qb7+ Kd6 53. Qb6+ Ke5 54. Qb2+ Ke4 55. Qb7+ Ke3 56. Qb6+ Kf3 57. Qf6+ Kg2 58. Qxg5 Qf2+ 59. Kb7 Kxh2 60. Qf4 Qxg3 61. Qh6+ Qh3 62. Qf4+ Kg2 63. Qd2+ Kf1 64. Qd1+ Kf2 65. Qd2+ Kg3 66. Qd3+ Kg4 67. Qd4+ Kf5 68. Qd5+ Kg6 69. Qd6+ Kg7 70. Qe7+ Kh6 71. Qf6+ Kh5 72. Qf7+ Kg4 73. Qe6+ Kg3 74. Qe3+ Kg2 75. Qe2+ Kg3 76. Qe3+ Kg4 77. Qe4+ Kg3 78. Qe3+ Kg4 79. Qe4+ Kg3 80. Qe3+ Kg4 81. Qe4+ Kg3 1/2-1/2

View the computer analysis

https://www.ChessOnlineFree.com/game/vq20cscw/black

Opening A56 Benoni Defense