FEN
[Event "Achtkamp Constant-Charlois Rotterdam 1939"]
[Site "https://lidraughts.org/7xCO1RVt"]
[Date "1939.03.25"]
[Round "1"]
[White "Raichenbach, Maurice"]
[Black "Idserda, Pieter Hendrik"]
[Result "2-0"]
[WhiteElo "?"]
[BlackElo "?"]
[GameType "20"]
[TimeControl "-"]
[Opening "?"]
[Termination "Normal"]
[Annotator "lidraughts.org"]
1. 34-29 19-23 2. 39-34 14-19 3. 44-39 10-14 4. 50-44 5-10 5. 31-26 20-25 6. 37-31 14-20 7. 41-37 10-14 8. 46-41 4-10 9. 32-27 19-24 10. 37-32 14-19 11. 41-37 17-22 12. 47-41 10-14 13. 32-28 23x21 14. 26x28 18-22 15. 28x17 11x22 16. 37-32 7-11 17. 41-37 1-7 18. 31-26 12-18 19. 32-28 7-12 20. 28x17 12x21 21. 26x17 11x22 22. 37-32 2-7 23. 42-37 8-12 24. 48-42 3-8 25. 32-27 22x31 26. 37x26 16-21 27. 26x17 12x21 28. 38-32 21-26 29. 43-38 19-23 30. 49-43 14-19 31. 32-28 23x32 32. 38x27 26-31 33. 29-23 18x49 34. 27-21 49x16 35. 36x27 16x47 36. 39-33 47x29 37. 34x1 6-11 38. 1-12 11-16 39. 44-39 13-19 40. 12-3 19-23 41. 39-34 23-29 42. 34x23 24-30 43. 35x24 20x18 44. 3-9 18-23 45. 9-14 23-29 46. 40-34 29x40 47. 45x34 {Black resigns.} 2-0