[Event "Extern"] [Site "Lonneker"] [Date "2019.11.24"] [White "Bert Duijker (ASV Arnhem) (1848)"] [Black "Roelof Berkepeis (SVL) (1802)"] [Result "1/2-1/2"] [GameId "i3FXi3Bv"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "D11"] [Opening "Slav Defense: Modern Line"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 { [%eval 0.06] } 1... d5 { [%eval 0.25] } 2. d4 { [%eval 0.22] } 2... c6 { [%eval 0.35] } 3. c4 { [%eval 0.22] } { D11 Slav Defense: Modern Line } 3... Nf6 { [%eval 0.27] } 4. Qc2 { [%eval 0.0] } 4... Bg4 { [%eval 0.39] } 5. Nbd2 { [%eval 0.16] } 5... Bh5 { [%eval 0.48] } 6. e3 { [%eval 0.52] } 6... Na6?! { (0.52 → 1.43) Inaccuracy. e6 was best. } { [%eval 1.43] } (6... e6 7. Bd3 Bb4 8. O-O O-O 9. a3 Bxd2 10. Bxd2 Bg6 11. Ne5 Bxd3 12. Nxd3 dxc4 13. Qxc4) 7. a3 { [%eval 0.94] } 7... Bg6 { [%eval 1.26] } 8. Bd3?! { (1.26 → 0.68) Inaccuracy. Qb3 was best. } { [%eval 0.68] } (8. Qb3 Qb6 9. cxd5 Nxd5 10. Qa4 e6 11. e4 Nf6 12. Bd3 Be7 13. O-O O-O 14. b4 Qd8) 8... dxc4?! { (0.68 → 1.79) Inaccuracy. Bxd3 was best. } { [%eval 1.79] } (8... Bxd3 9. Qxd3 e6 10. O-O Be7 11. b3 O-O 12. Bb2 Nb8 13. e4 dxe4 14. Nxe4 Nbd7 15. Nc3) 9. Nxc4?! { (1.79 → 1.01) Inaccuracy. Bxg6 was best. } { [%eval 1.01] } (9. Bxg6 hxg6 10. O-O e6 11. Nxc4 Qd5 12. Re1 Qe4 13. Qb3 Rb8 14. Nce5 Rh5 15. h3 Nc5) 9... Bxd3 { [%eval 0.87] } 10. Qxd3 { [%eval 0.88] } 10... Nc5 { [%eval 0.84] } 11. Qc2 { [%eval 0.68] } 11... Nce4 { [%eval 0.86] } 12. O-O { [%eval 0.94] } 12... e6 { [%eval 0.98] } 13. b4 { [%eval 0.98] } 13... Nd6 { [%eval 1.38] } 14. Na5 { [%eval 1.39] } 14... Qb6 { [%eval 1.35] } 15. Bb2 { [%eval 1.14] } 15... Be7 { [%eval 1.27] } 16. Rac1 { [%eval 0.99] } 16... O-O { [%eval 1.03] } 17. Ne5 { [%eval 0.83] } 17... Rfd8 { [%eval 1.08] } 18. Nac4 { [%eval 0.56] } 18... Nxc4 { [%eval 0.45] } 19. Qxc4 { [%eval 0.0] } 19... a5 { [%eval -0.07] } 20. Nd3 { [%eval -0.57] } 20... axb4 { [%eval -0.62] } 21. axb4 { [%eval -0.7] } 21... Nd5 { [%eval -0.52] } 22. Bc3 { [%eval -0.53] } 22... Qa6 { [%eval -0.51] } 23. Bd2 { [%eval -0.7] } 23... Nb6?! { (-0.70 → 0.00) Inaccuracy. Qxc4 was best. } { [%eval 0.0] } (23... Qxc4 24. Rxc4 Ra2 25. Rd1 Nc7 26. Nc5 Bxc5 27. bxc5 e5 28. Rcc1 exd4 29. exd4 Rxd4 30. Be3) 24. Qxa6 { [%eval -0.2] } 24... Rxa6 { [%eval -0.2] } 25. Nc5 { [%eval -0.19] } 25... Ra7 { [%eval -0.16] } 26. Ra1 { [%eval -0.3] } 26... Rda8 { [%eval -0.32] } 27. Rxa7 { [%eval -0.19] } 27... Rxa7 { [%eval -0.31] } 28. Rc1 { [%eval -0.42] } 28... Kf8 { [%eval -0.07] } 29. f4?! { (-0.07 → -0.74) Inaccuracy. e4 was best. } { [%eval -0.74] } (29. e4 h6 30. Bf4 Nc8 31. Bb8 Bxc5 32. bxc5 Ra4 33. Rd1 Ke7 34. Rb1 b5 35. cxb6 Nxb6) 29... Ke8 { [%eval -0.59] } 30. Kf2 { [%eval -0.66] } 30... Kd8 { [%eval -0.62] } 31. e4 { [%eval -0.98] } 31... Kc7 { [%eval -0.47] } 32. Rc2 { [%eval -0.56] } 32... Nc8 { [%eval -0.43] } 33. Nd3 { [%eval -0.9] } 33... Nd6 { [%eval -0.77] } 34. Ke3 { [%eval -0.8] } 34... Nb5 { [%eval -0.64] } 35. g4?! { (-0.64 → -1.22) Inaccuracy. d5 was best. } { [%eval -1.22] } (35. d5 exd5 36. exd5 Ra3 37. g4 g6 38. dxc6 bxc6 39. g5 f5 40. gxf6 Bxf6 41. Bc1 Rc3) 35... Ra3 { [%eval -1.22] } 36. d5 { [%eval -1.41] } 36... exd5?! { (-1.41 → -0.61) Inaccuracy. e5 was best. } { [%eval -0.61] } (36... e5 37. Bc1 exf4+ 38. Kd2 Rb3 39. Rc4 Nd6 40. Rd4 cxd5 41. Kc2 Rc3+ 42. Kxc3 Nb5+ 43. Kd2) 37. exd5 { [%eval -0.81] } 37... Bf6 { [%eval -0.41] } 38. dxc6 { [%eval -0.4] } 38... bxc6 { [%eval -0.45] } 39. g5?! { (-0.45 → -1.04) Inaccuracy. Bc1 was best. } { [%eval -1.04] } (39. Bc1 Rb3 40. Bb2 Bc3 41. h4 f6 42. g5 h5 43. gxf6 gxf6 44. Rg2 Bxb2 45. Rxb2 Rxb2) 39... Bd4+ { [%eval -1.15] } 40. Ke4?! { (-1.15 → -2.22) Inaccuracy. Ke2 was best. } { [%eval -2.22] } (40. Ke2 Bb6 41. Rb2 Bg1 42. Ne5 Bd4 43. Rb1 Bxe5 44. fxe5 Kd7 45. Kf2 Ke6 46. Rc1 Nd4) 40... Bg1 { [%eval -1.97] } 41. Nc5 { [%eval -2.29] } 41... f5+?? { (-2.29 → 0.00) Blunder. Nd6+ was best. } { [%eval 0.0] } (41... Nd6+ 42. Ke5 Ra8 43. f5 Bxh2+ 44. Bf4 Re8+ 45. Ne6+ fxe6 46. Bxh2 exf5+ 47. Kf4 Kb6 48. Bg1+) 42. gxf6?! { (0.00 → -1.02) Inaccuracy. Ke5 was best. } { [%eval -1.02] } (42. Ke5 g6) 42... Nd6+? { (-1.02 → 0.19) Mistake. gxf6 was best. } { [%eval 0.19] } (42... gxf6) 43. Ke5 { [%eval 0.42] } 43... gxf6+ { [%eval 0.36] } 44. Kxf6 { [%eval 0.37] } 44... Bxh2 { [%eval 0.88] } 45. Bc1 { [%eval 1.06] } 45... Rh3 { [%eval 0.84] } 46. Ne6+ { [%eval 0.75] } 46... Kb6 { [%eval 0.9] } 47. Nd4 { [%eval 1.47] } 47... Rc3 { [%eval 1.16] } 48. Rxc3 { [%eval 1.25] } 48... Ne4+ { [%eval 1.46] } 49. Kg7? { (1.46 → 0.13) Mistake. Ke6 was best. } { [%eval 0.13] } (49. Ke6 Nxc3) 49... Nxc3 { [%eval 0.13] } 50. Kxh7 { [%eval 0.13] } 50... Nd5 { [%eval 0.13] } 51. f5 { [%eval 0.13] } 51... Be5 { [%eval 0.13] } 52. Nf3 { [%eval 0.13] } 52... Bc3 { [%eval 0.13] } 53. Bd2 { [%eval 0.13] } 53... Bxd2 { [%eval 0.13] } 54. Nxd2 { [%eval 0.13] } 54... Kb5 { [%eval 0.13] } 55. Kg7 { [%eval 0.13] } 55... Kxb4 { [%eval 0.13] } 56. f6 { [%eval 0.13] } 56... Nxf6 { [%eval 0.13] } { The game is a draw. } 1/2-1/2