| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. T Grzesik vs G de Boer |
| 0-1 | 41 | 1982 | Regency Masters | B40 Sicilian |
| 52. G de Boer vs T Upton |
| 0-1 | 35 | 1982 | Regency Masters | D55 Queen's Gambit Declined |
| 53. G de Boer vs Timman |
| 1-0 | 36 | 1983 | NED-chT | A61 Benoni |
| 54. H Perez Garcia vs G de Boer |
| 1-0 | 40 | 1983 | Amstelveen open | A07 King's Indian Attack |
| 55. G Timmerman vs G de Boer |
| 1-0 | 68 | 1983 | NED-ch sf-B playoff | B49 Sicilian, Taimanov Variation |
| 56. G de Boer vs I Hakki |
| 0-1 | 30 | 1983 | Bela Crkva Open | A77 Benoni, Classical, 9...Re8, 10.Nd2 |
| 57. Lobron vs G de Boer |
| ½-½ | 85 | 1983 | Amsterdam OHRA | B08 Pirc, Classical |
| 58. G de Boer vs R Henley |
 | ½-½ | 67 | 1983 | Amsterdam OHRA | D87 Grunfeld, Exchange |
| 59. H Ree vs G de Boer |
| 1-0 | 40 | 1983 | Amsterdam OHRA | D97 Grunfeld, Russian |
| 60. G de Boer vs R Kuijf |
| ½-½ | 27 | 1983 | Amsterdam OHRA | E15 Queen's Indian |
| 61. K Langeweg vs G de Boer |
| 1-0 | 76 | 1983 | Amsterdam OHRA | A48 King's Indian |
| 62. G de Boer vs K Berg |
| ½-½ | 57 | 1983 | Amsterdam OHRA | A58 Benko Gambit |
| 63. J Vogel vs G de Boer |
| 1-0 | 48 | 1983 | Amsterdam OHRA | D73 Neo-Grunfeld, 5.Nf3 |
| 64. G de Boer vs H Grooten |
| 1-0 | 27 | 1983 | Amsterdam OHRA | E15 Queen's Indian |
| 65. J van Baarle vs G de Boer |
| ½-½ | 51 | 1983 | Amsterdam OHRA | B40 Sicilian |
| 66. G de Boer vs F van der Vliet |
| 1-0 | 37 | 1983 | Amsterdam OHRA | E11 Bogo-Indian Defense |
| 67. G Ligterink vs G de Boer |
| ½-½ | 36 | 1983 | Amsterdam OHRA | E92 King's Indian |
| 68. Short vs G de Boer |
| ½-½ | 35 | 1983 | Benedictine International | B81 Sicilian, Scheveningen, Keres Attack |
| 69. G de Boer vs Y Kraidman |
| 0-1 | 37 | 1983 | Benedictine International | A56 Benoni Defense |
| 70. S T Banks vs G de Boer |
| 0-1 | 43 | 1983 | Benedictine International | E63 King's Indian, Fianchetto, Panno Variation |
| 71. G de Boer vs I Bilek |
| ½-½ | 43 | 1983 | Benedictine International | B27 Sicilian |
| 72. G de Boer vs M Bosboom |
| 0-1 | 38 | 1983 | NED-ch sf B | E94 King's Indian, Orthodox |
| 73. G de Boer vs S Rachels |
| 1-0 | 32 | 1983 | Regency Masters | A79 Benoni, Classical, 11.f3 |
| 74. Lengyel vs G de Boer |
| ½-½ | 27 | 1983 | Regency Masters | A30 English, Symmetrical |
| 75. G de Boer vs P K Singh |
| ½-½ | 15 | 1983 | Regency Masters | E10 Queen's Pawn Game |
Kibitzing
