[Event "Schachbundesliga 2011-12"] [Site "Emsdetten GER"] [Date "2012.02.04"] [Round "8"] [White "Potkin, Vladimir"] [Black "Grandelius, Nils"] [Result "1-0"] [WhiteElo "2671"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A19"] [Opening "English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 e6 2. Nc3 Nf6 3. e4 c5 4. e5 Ng8 { A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit } 5. Nf3 Nc6 6. d4 cxd4 7. Nxd4 Nxe5 8. Ndb5 a6 9. Nd6+ Bxd6 10. Qxd6 f6 11. Be3 Ne7 12. Bb6 Nf5 13. Qb4 Nc6 14. Qc5 d6 15. Bxd8 dxc5 16. Bb6 Ne5 17. Bxc5 Bd7 18. b4 a5 19. b5 Rc8 20. Ne4 b6 21. f4?! { (0.63 → 0.07) Inaccuracy. Bxb6 was best. } (21. Bxb6 Nxc4 22. Bc5 Bxb5 23. Rc1 Bc6 24. Bxc4 Bxe4 25. Bxe6 Rc6 26. Bb3 Bxg2 27. Rg1 Bf3) 21... Nxc4 22. Bxc4 bxc5 23. Kf2 Ke7 24. a4 Nd4 25. Rac1 f5 26. Nd2 h6 27. h4 Kf6 28. Ba2 Be8 29. Nc4 Bh5 30. Rhe1 Rhd8 31. Nxa5?! { (1.11 → 0.39) Inaccuracy. Rc3 was best. } (31. Rc3) 31... Ra8 32. Nb7 Rxa4 33. Bxe6 Ne2?! { (0.08 → 0.67) Inaccuracy. Nxe6 was best. } (33... Nxe6 34. Rxe6+ Kxe6 35. Nxc5+ Ke7 36. Nxa4 Rd4 37. Rc7+ Kd8 38. Ra7 Rxf4+ 39. Kg3 Rb4 40. Nc5) 34. Bc4 Rd2 35. Rxe2 Bxe2 36. Bxe2 Raa2 37. Re1 Rdb2 38. Nxc5 Rxb5 39. Nd7+ Ke7 40. Ne5 Kf6 41. Kf1 Rba5 42. h5 Ra1 43. Rxa1 Rxa1+ 44. Kf2 Ra2 45. Kf3 Ra3+ 46. Bd3 Rb3 47. g3 Ra3 48. Ke3 Ra2? { (1.17 → 2.62) Mistake. Ra1 was best. } (48... Ra1 49. Bc4 Ra3+ 50. Kf2 Ke7 51. Bd3 Kf6 52. Kf3 Rc3 53. Ke3 Ra3 54. Kd4 Ra1 55. Ke3) 49. Nd7+ Ke7 50. Bxf5 Ra3+ 51. Kf2 Rb3 52. Ne5 Ra3 53. g4 Rc3 54. Nf3 Ra3 55. Kg3 Rc3 56. g5 hxg5 57. fxg5 Rc4 58. Ne5 Ra4 59. Ng6+ Kf7 60. Nf4 Kg8 61. Kg4 Kh8?? { (2.62 → 5.80) Blunder. Ra5 was best. } (61... Ra5 62. Be6+) 62. Bd3?? { (5.80 → 2.62) Blunder. g6 was best. } (62. g6) 62... Ra5 63. Be4 Rb5 64. Bd5 Ra5?? { (2.48 → 5.66) Blunder. Kh7 was best. } (64... Kh7 65. Be4+ Kg8 66. Bd5+ Kh7 67. Be4+ Kg8 68. Ng6 Kh7 69. Ne7+ Kh8 70. Bd5 Kh7 71. Kf5) 65. Kf5?? { (5.66 → 2.48) Blunder. g6 was best. } (65. g6) 65... Kh7 66. Ke6 Ra6+?! { (2.33 → 3.47) Inaccuracy. Ra1 was best. } (66... Ra1 67. Ke5 Re1+ 68. Kf5 Rf1 69. Bc4 Ra1 70. Bd3 Ra5+ 71. Kg4+ Kg8 72. Be4 Ra1 73. Bd5+) 67. Kf7 Ra7+?? { (2.63 → 41.45) Blunder. Ra4 was best. } (67... Ra4) 68. Kf8 Ra6 69. h6 Ra4?! { (41.37 → Mate in 2) Checkmate is now unavoidable. g6 was best. } (69... g6 70. Bg8+ Kh8 71. Bc4 Ra5 72. Bd5 Ra1 73. Nxg6+ Kh7 74. Ne7 Kh8 75. Be4 Ra6 76. Ke8) 70. Bg8+ Kh8 71. Ng6# { White wins by checkmate. } 1-0