[Event "CLF-CHESS-OPEN"] [Site "Jena"] [Date "2017.5.27"] [Round "5"] [White "Sadko Petersohn"] [Black "Lars Kühne"] [Result "1-0"] [GameId "4lXlmS6W"] [WhiteElo "1647"] [BlackElo "943"] [Variant "Standard"] [TimeControl "-"] [ECO "D02"] [Opening "Queen's Pawn Game: Symmetrical Variation"] [Termination "Normal"] [Annotator "adjva4.dpdns.org"] 1. d4 { [%eval 0.24] } 1... Nf6 { [%eval 0.26] } 2. Nf3 { [%eval 0.2] } 2... d5 { [%eval 0.22] } { D02 Queen's Pawn Game: Symmetrical Variation } 3. c4 { [%eval 0.26] } 3... e6 { [%eval 0.3] } 4. g3 { [%eval -0.02] } 4... c5 { [%eval 0.24] } 5. Bg2 { [%eval 0.1] } 5... Nc6 { [%eval 0.37] } 6. cxd5 { [%eval 0.23] } 6... Nxd5 { [%eval 0.51] } 7. O-O { [%eval 0.49] } 7... Nf6 { [%eval 0.66] } 8. dxc5 { [%eval 0.69] } 8... Qxd1 { [%eval 0.72] } 9. Rxd1 { [%eval 0.64] } 9... Bxc5 { [%eval 0.72] } 10. Nc3 { [%eval 0.47] } 10... O-O { [%eval 0.54] } 11. Ng5 { [%eval 0.3] } 11... Bd7? { (0.30 → 1.64) Mistake. e5 was best. } { [%eval 1.64] } (11... e5 12. Nge4 Nxe4 13. Nxe4 Bb6 14. Be3 Nd4 15. Rd2 Bg4 16. Nc3 Rad8 17. Bxb7 Nxe2+ 18. Rxe2) 12. Nge4 { [%eval 1.47] } 12... Bd4? { (1.47 → 3.08) Mistake. Nxe4 was best. } { [%eval 3.08] } (12... Nxe4 13. Nxe4 Bd4 14. e3 f5 15. Nd6 Bf6 16. Nxb7 Be8 17. Nc5 Bh5 18. Rd2 Rac8 19. Nxe6) 13. Nxf6+ { [%eval 3.04] } 13... gxf6 { [%eval 3.04] } 14. Bxc6 { [%eval 3.01] } 14... Bxf2+ { [%eval 2.94] } 15. Kxf2 { [%eval 2.79] } 15... Bxc6 { [%eval 2.84] } 16. Bh6 { [%eval 2.84] } 16... Rfd8 { [%eval 2.96] } 17. Rxd8+ { [%eval 2.91] } 17... Rxd8 { [%eval 2.77] } 18. Rd1 { [%eval 2.74] } 18... Rc8?! { (2.74 → 3.57) Inaccuracy. Rxd1 was best. } { [%eval 3.57] } (18... Rxd1 19. Nxd1 f5 20. Be3 b6 21. Bd4 Kf8 22. Bf6 Ke8 23. Ke3 Bd5 24. b3 Be4 25. Nc3) 19. Rd4 { [%eval 3.34] } 19... f5 { [%eval 3.37] } 20. Bg5?! { (3.37 → 2.61) Inaccuracy. g4 was best. } { [%eval 2.61] } (20. g4 f6 21. gxf5 Kf7 22. fxe6+ Kxe6 23. Bf4 Re8 24. Be3 b6 25. Rc4 Kd7 26. Rh4 Re7) 20... Kg7 { [%eval 2.59] } 21. Rd8 { [%eval 2.49] } 21... Rc7 { [%eval 2.79] } 22. Bf4 { [%eval 2.54] } 22... Rd7 { [%eval 2.91] } 23. Rxd7 { [%eval 2.77] } 23... Bxd7 { [%eval 2.81] } 24. Ke3 { [%eval 2.76] } 24... f6 { [%eval 2.84] } 25. Kd3 { [%eval 2.79] } 25... Kf7 { [%eval 2.87] } 26. e4 { [%eval 2.24] } 26... fxe4+ { [%eval 2.23] } 27. Nxe4 { [%eval 2.03] } 27... Bc6?! { (2.03 → 2.69) Inaccuracy. e5 was best. } { [%eval 2.69] } (27... e5 28. Be3 Bb5+ 29. Kc3 Bc6 30. Nd6+ Ke6 31. Nc8 a6 32. Kb4 h5 33. Kc5 h4 34. gxh4) 28. Be3 { [%eval 2.6] } 28... a6 { [%eval 2.68] } 29. b4 { [%eval 2.39] } 29... Kg6 { [%eval 2.64] } 30. Nc5 { [%eval 2.04] } 30... Bd5 { [%eval 2.43] } 31. a3 { [%eval 2.33] } 31... h5 { [%eval 2.57] } 32. Kd4 { [%eval 2.57] } 32... Kf5 { [%eval 2.66] } 33. Nd3 { [%eval 2.57] } 33... Bc6 { [%eval 2.66] } 34. Nc5 { [%eval 2.04] } 34... e5+ { [%eval 2.02] } 35. Kd3 { [%eval 1.89] } 35... Bb5+ { [%eval 2.0] } 36. Kc3 { [%eval 1.98] } 36... Kg4 { [%eval 2.33] } 37. Nxb7 { [%eval 2.12] } 37... Kh3 { [%eval 2.24] } 38. Nd6 { [%eval 1.82] } 38... Bd7? { (1.82 → 3.52) Mistake. Bc6 was best. } { [%eval 3.52] } (38... Bc6 39. Bb6 Kxh2 40. Bd8 Kxg3 41. Bxf6 Kf4 42. Nc4 e4 43. Kd4 Kg3 44. Ne3 Kf2 45. Bg5) 39. Ne4 { [%eval 3.4] } 39... f5 { [%eval 3.39] } 40. Nf6 { [%eval 3.28] } 40... Bc6 { [%eval 3.29] } 41. Nxh5 { [%eval 3.02] } 41... Kxh2 { [%eval 3.14] } 42. Bf2 { [%eval 2.62] } 42... Kg2 { [%eval 2.55] } 43. Be1 { [%eval 2.47] } 43... Kf3 { [%eval 2.47] } 44. Kc4 { [%eval 2.05] } 44... f4?? { (2.05 → 4.52) Blunder. Bd7 was best. } { [%eval 4.52] } (44... Bd7 45. Bd2) 45. gxf4 { [%eval 4.03] } 45... exf4? { (4.03 → 7.19) Mistake. Be8 was best. } { [%eval 7.19] } (45... Be8 46. Nf6) 46. Bd2 { [%eval 6.64] } 46... Ke4 { [%eval 6.7] } 47. Bxf4 { [%eval 5.75] } 47... Bb5+?! { (5.75 → 8.22) Inaccuracy. Bd5+ was best. } { [%eval 8.22] } (47... Bd5+ 48. Kc5) 48. Kc5 { [%eval 6.67] } 48... Kd3?! { (6.67 → 13.43) Inaccuracy. Kf5 was best. } { [%eval 13.43] } (48... Kf5 49. Bd6) 49. Nf6 { [%eval 9.1] } 49... Kc3 { [%eval 41.08] } 50. Nd5+ { [%eval 12.9] } 50... Kb3 { [%eval 41.25] } 51. Nc7 { [%eval 13.64] } 51... Be2 { [%eval 13.48] } 52. Kb6 { [%eval 10.2] } 52... Kxa3 { [%eval 41.33] } 53. Ka5 { [%eval 41.33] } 53... Kb3 { [%eval 41.33] } 54. Bd6 { [%eval 41.33] } 54... Kc4 { [%eval 41.33] } 55. Nxa6 { [%eval 41.33] } 55... Kd5 { [%eval 41.33] } 56. Bg3 { [%eval 41.33] } 56... Kc6 { [%eval 41.33] } 57. Nc5 { [%eval 41.33] } 57... Bf1 { [%eval 41.33] } 58. Ne4 { [%eval 41.29] } 58... Kb7 { [%eval 41.25] } 59. b5 { [%eval 41.16] } 59... Bxb5?! { (41.16 → Mate in 28) Checkmate is now unavoidable. Ka7 was best. } { [%eval #28] } (59... Ka7 60. Bf2+ Kb8 61. Kb6 Bg2 62. Bg3+ Kc8 63. Nd6+ Kb8 64. Nf5+ Kc8 65. Ka7 Kd7 66. Nd6) 60. Kxb5 { [%eval #28] } 60... Ka8 { [%eval #22] } 61. Kc6 { [%eval #22] } 61... Ka7 { [%eval #25] } 62. Nd6 { [%eval #24] } 62... Kb8 { [%eval #37] } 63. Nb5+ { [%eval #25] } 63... Ka8 { [%eval #22] } 64. Nc3 { [%eval #21] } 64... Ka7 { [%eval #21] } 65. Nd5 { [%eval #20] } 65... Ka8 { [%eval #20] } 66. Nb6+ { [%eval #19] } 66... Ka7 { [%eval #19] } 67. Bc7 { [%eval #18] } 67... Ka6 { [%eval #18] } 68. Bb8 { [%eval #17] } 68... Ka5 { [%eval #17] } 69. Nd5 { [%eval #16] } 69... Ka6 { [%eval #13] } 70. Nb4+ { [%eval #12] } 70... Ka5 { [%eval #12] } 71. Kc5 { [%eval #11] } 71... Ka4 { [%eval #11] } 72. Kc4 { [%eval #10] } 72... Ka5 { [%eval #10] } 73. Bc7+ { [%eval #9] } 73... Ka4 { [%eval #9] } 74. Bb6 { [%eval #9] } 74... Ka3 { [%eval #9] } 75. Nd3 { [%eval #8] } 75... Ka4 { [%eval #8] } 76. Nb2+ { [%eval #7] } 76... Ka3 { [%eval #7] } 77. Kc3 { [%eval #6] } 77... Ka2 { [%eval #6] } 78. Kc2 { [%eval #5] } 78... Ka1 { [%eval #5] } 79. Bc5 { [%eval #4] } 79... Ka2 { [%eval #4] } 80. Nd3 { [%eval #3] } 80... Ka1 { [%eval #3] } 81. Bf8 { [%eval #2] } 81... Ka2 { [%eval #2] } 82. Nc1+ { [%eval #1] } 82... Ka1 { [%eval #1] } 83. Bg7# { White wins by checkmate. } 1-0