FEN
[Event "Attack Worldrecord Clocksimultane Wouter Sipma Drenthe 2025"]
[Site "https://lidraughts.org/Yow45xk7"]
[Date "2025.10.12"]
[Round "1"]
[White "Sipma, Wouter"]
[Black "van Ark, Gerald"]
[Result "2-0"]
[WhiteElo "?"]
[BlackElo "?"]
[GameType "20"]
[TimeControl "-"]
[Opening "?"]
[Termination "Normal"]
[Annotator "lidraughts.org"]
1. 34-29 20-25 2. 40-34 14-20 3. 45-40 20-24 4. 29x20 25x14 5. 35-30 19-23 6. 33-29 14-19 7. 38-33 10-14 8. 42-38 17-22 9. 32-28 23x32 10. 37x17 12x21 11. 38-32 14-20 12. 40-35 7-12 13. 43-38 1-7 14. 47-42 19-24 15. 30x19 13x24 16. 32-28 20-25 17. 29x20 25x14 18. 41-37 21-26 19. 37-32 26x37 20. 42x31 18-22 21. 28x17 12x21 22. 46-41 7-12 23. 41-37 9-13 24. 33-28 4-9 25. 39-33 5-10 26. 44-39 15-20 27. 34-29 20-24 28. 29x20 14x25 29. 49-44 10-14 30. 44-40 13-19 31. 50-45 8-13 32. 48-43 2-8 33. 35-30 25x34 34. 40x29 19-24 35. 29x20 14x25 36. 39-34 13-19 37. 43-39 19-24 38. 34-29 21-26 39. 29x20 25x14 40. 45-40 8-13 41. 39-34 14-20?! {(0.71 → 1.18) Inaccuracy. Best move was 14-19.} (41... 14-19 42. 33-29 16-21 43. 40-35 11-17 44. 34-30 12-18 45. 28-22 18x27 46. 31x11 6x17 47. 29-24 17-22 48. 24-20) 42. 33-29 11-17 43. 40-35 6-11?! {(1.25 → 2.06) Inaccuracy. Best move was 16-21.} (43... 16-21 44. 35-30 12-18 45. 28-23 17-22 46. 23x12 21-27 47. 32x21 26x8 48. 30-24 20-25 49. 37-32 8-12 50. 31-27) 44. 35-30 16-21?? {(1.19 → 4.26) Blunder. Best move was 3-8.} (44... 3-8 45. 28-22 17x28 46. 32x23 20-25 47. 30-24 12-17 48. 31-27 8-12 49. 38-33 17-21 50. 37-31 26x37 51. 23-19) 45. 30-24 13-18? {(3.86 → 6.08) Mistake. Best move was 9-14.} (45... 9-14 46. 24x15 3-9 47. 34-30 12-18 48. 28-22 18x27 49. 31x22 17x28 50. 32x23 11-17 51. 30-24 13-18 52. 23x12) 46. 24x15 18-22 47. 38-33 9-14 48. 34-30 11-16?! {(6.44 → 9.07) Inaccuracy. Best move was 12-18.} (48... 12-18 49. 29-24 14-20 50. 33-29 22x33 51. 29x38 20x29 52. 15-10 17-22 53. 10-5 29-34 54. 30x39 21-27 55. 32x21) 49. 30-25 21-27 50. 32x21 16x27 51. 25-20 14x25 52. 15-10? {(8.66 → 4.84) Mistake. Best move was 29-23.} (52. 29-23 17-21 53. 28x8 3x12 54. 31x22 25-30 55. 22-17 12-18 56. 23x12 30-35 57. 15-10 35-40 58. 17-11 40-44) 52... 27-32?? {(4.84 → Win in 12) Win is now unavoidable. Best move was 3-9.} (52... 3-9 53. 29-24 9-14 54. 10x19 12-18 55. 33-29 22x33 56. 31x11 33-39 57. 19-14 39-44 58. 14-10 44-49 59. 10-5) 53. 29-23 32x41 54. 36x47 26x37 55. 10-4 37-41? {(9.77 → Win in 13) Win is now unavoidable. Best move was 37-42.} (55... 37-42 56. 4x48 17-21 57. 23-19 21-27 58. 48-34 12-17 59. 19-14 3-8 60. 14-10 8-12 61. 34x1 17-21 62. 1-34) 56. 47x36 25-30 57. 4x27 30-35 58. 27-49 3-8 59. 49-44? {(Win in 6 → 9.07) Lost forced winning sequence. Best move was 23-18.} (59. 23-18 12x32 60. 49x3 35-40 61. 3-21 40-44 62. 21-49 44-50 63. 49-27 50x31 64. 36x27) 59... 8-13? {(9.07 → Win in 9) Win is now unavoidable. Best move was 17-21.} (59... 17-21 60. 23-19 12-17 61. 19-14 21-27 62. 14-10 8-13 63. 33-29 13-19 64. 10-4 19-23 65. 28x19 17-22 66. 44x17) 60. 36-31 17-21 61. 31-27 21x32 62. 28x37 {Black resigns.} 2-0