| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. G Ligterink vs K Payrhuber |
| 1-0 | 44 | 1968 | Niemeyer Juniors Preliminary | A65 Benoni, 6.e4 |
| 27. G Ligterink vs H Schaufelberger |
| 0-1 | 30 | 1968 | Niemeyer Juniors Preliminary | A42 Modern Defense, Averbakh System |
| 28. G Ligterink vs K Payrhuber |
| 1-0 | 38 | 1969 | 7th Niemeyer Final-B | A67 Benoni, Taimanov Variation |
| 29. J Moles vs G Ligterink |
 | 1-0 | 22 | 1969 | 7th Niemeyer Final-B | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 30. G Ligterink vs J Bellon Lopez |
| 0-1 | 58 | 1969 | 7th Niemeyer Final-B | D25 Queen's Gambit Accepted |
| 31. G Ligterink vs S Fedder |
| ½-½ | 22 | 1969 | 7th Niemeyer Final-B | D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g3 |
| 32. J Juhnke vs G Ligterink |
| 1-0 | 33 | 1969 | 7th Niemeyer Final-B | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 33. G Ligterink vs H Bohm |
| ½-½ | 35 | 1969 | 7th Niemeyer Final-B | E20 Nimzo-Indian |
| 34. B Vujacic vs G Ligterink |
| ½-½ | 15 | 1969 | 7th Niemeyer Final-B | C44 King's Pawn Game |
| 35. G Ligterink vs J Pokojowczyk |
| 1-0 | 34 | 1969 | 7th Niemeyer Final-B | A44 Old Benoni Defense |
| 36. L Teirlinck vs G Ligterink |
| 0-1 | 20 | 1969 | 7th Niemeyer Final-B | A28 English |
| 37. G Ligterink vs S Bouaziz |
| 1-0 | 33 | 1969 | World Junior Championship qual-5 | E87 King's Indian, Samisch, Orthodox |
| 38. J Juhnke vs G Ligterink |
| 1-0 | 24 | 1969 | World Junior Championship qual-5 | B06 Robatsch |
| 39. B Vujacic vs G Ligterink |
| ½-½ | 46 | 1969 | World Junior Championship qual-5 | B03 Alekhine's Defense |
| 40. G Ligterink vs K Harandi |
| 1-0 | 39 | 1969 | World Junior Championship qual-5 | E25 Nimzo-Indian, Samisch |
| 41. G Ligterink vs T Ristoja |
| 0-1 | 40 | 1969 | World Junior Championship qual-5 | E20 Nimzo-Indian |
| 42. L Ogaard vs G Ligterink |
| ½-½ | 21 | 1969 | World Junior Championship Final-B | D45 Queen's Gambit Declined Semi-Slav |
| 43. G Ligterink vs E Ermenkov |
| ½-½ | 19 | 1969 | World Junior Championship Final-B | D32 Queen's Gambit Declined, Tarrasch |
| 44. K Payrhuber vs G Ligterink |
| 0-1 | 24 | 1969 | World Junior Championship Final-B | B02 Alekhine's Defense |
| 45. J Green-Krotki vs G Ligterink |
| ½-½ | 22 | 1969 | World Junior Championship Final-B | A00 Uncommon Opening |
| 46. G Ligterink vs N Craske |
| ½-½ | 34 | 1969 | World Junior Championship Final-B | E20 Nimzo-Indian |
| 47. A H Williams vs G Ligterink |
| ½-½ | 20 | 1969 | World Junior Championship Final-B | C92 Ruy Lopez, Closed |
| 48. G Ligterink vs E Torre |
| ½-½ | 57 | 1969 | World Junior Championship Final-B | E80 King's Indian, Samisch Variation |
| 49. K Rogoff vs G Ligterink |
| 1-0 | 48 | 1969 | World Junior Championship Final-B | A09 Reti Opening |
| 50. G Ligterink vs S Bouaziz |
| 0-1 | 43 | 1969 | World Junior Championship Final-B | A65 Benoni, 6.e4 |
Kibitzing
