FEN
[Event "Wereldkampioenschap KNDB 1990"]
[Site "https://draughts64.com/jWCSNCEw"]
[Date "1990.11.22"]
[Round "13"]
[White "Kouperman, Iser Josypovitsj"]
[Black "Sijbrands, Ton"]
[Result "0-2"]
[WhiteElo "?"]
[BlackElo "?"]
[GameType "20"]
[TimeControl "-"]
[Opening "?"]
[Termination "Normal"]
[Annotator "lidraughts.org"]
1. 32-28 18-23 2. 33-29 23x32 3. 37x28 20-25 4. 41-37 17-21 5. 37-32 15-20 6. 38-33 21-26 7. 43-38 26x37 8. 42x31 19-24 9. 46-41 14-19 10. 41-37 10-15 11. 49-43 9-14 12. 47-42 16-21 13. 31-26 4-9 14. 26x17 11x22 15. 28x17 12x21 16. 32-28 8-12 17. 38-32 6-11 18. 43-38 2-8 19. 37-31 11-16 20. 42-37 21-26 21. 31-27 7-11 22. 48-42 5-10 23. 28-23 19x28 24. 33x22 24x33 25. 39x28 12-18 26. 44-39 20-24 27. 39-33 14-19 28. 34-30 25x34 29. 40x20 15x24 30. 45-40 10-15 31. 40-34 11-17 32. 22x11 16x7 33. 28-22?? {(-0.75 → -2.78) Blunder. Best move was 34-30.} (33. 34-30 15-20 34. 27-22 18x27 35. 32x21 26x17 36. 30-25 9-14 37. 50-44 13-18 38. 36-31 18-23 39. 37-32 7-11) 33... 26-31 34. 37x26 24-30 35. 34x25 15-20 36. 25x12 8x48 37. 33-29 13-19 38. 38-33? {(-2.52 → -3.87) Mistake. Best move was 50-45.} (38. 50-45 19-23 39. 29x18 3-8 40. 26-21 8-12 41. 38-33 12x23 42. 33-28 23x32 43. 27x38 48-39 44. 21-16 7-12) 38... 9-13 39. 50-44 48-42 40. 35-30?! {(-4.15 → -5.18) Inaccuracy. Best move was 44-40.} (40. 44-40 19-24 41. 29x20 42x15 42. 35-30 13-19 43. 27-22 19-23 44. 40-34 3-9 45. 30-25 15-33 46. 22-17 33x11) 40... 13-18 {White resigns.} 0-2