| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Savon vs J Kolbak |
| 1-0 | 38 | 1964 | WchT U26 11th fin-A | E07 Catalan, Closed |
| 2. J Kolbak vs J Adamski |
| ½-½ | 40 | 1964 | WchT U26 11th fin-A | A31 English, Symmetrical, Benoni Formation |
| 3. J Kolbak vs F Hoelzl |
| 1-0 | 45 | 1964 | Niemeyer Juniors 1964/65 | D30 Queen's Gambit Declined |
| 4. J Kolbak vs C Woodcock |
| ½-½ | 31 | 1964 | Niemeyer Juniors 1964/65 | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 5. Huebner vs J Kolbak |
| 1-0 | 77 | 1964 | Niemeyer Juniors 1964/65 | B43 Sicilian, Kan, 5.Nc3 |
| 6. J Kolbak vs Y Bleiman |
| ½-½ | 62 | 1964 | Niemeyer Juniors 1964/65 | E06 Catalan, Closed, 5.Nf3 |
| 7. H Ree vs J Kolbak |
| 0-1 | 22 | 1964 | Niemeyer Juniors 1964/65 | B95 Sicilian, Najdorf, 6...e6 |
| 8. J Kolbak vs H Glauser |
| ½-½ | 62 | 1965 | Niemeyer Juniors 1964/65 | E92 King's Indian |
| 9. P De Haseth vs J Kolbak |
| ½-½ | 27 | 1965 | Niemeyer Juniors 1964/65 | B72 Sicilian, Dragon |
| 10. J Kolbak vs J Sibe |
| 1-0 | 64 | 1965 | Niemeyer Juniors 1964/65 | A46 Queen's Pawn Game |
| 11. S Algera vs J Kolbak |
| 0-1 | 33 | 1965 | Niemeyer Juniors 1964/65 | C42 Petrov Defense |
| 12. J Kolbak vs S Noorda |
| 1-0 | 29 | 1965 | Niemeyer Juniors 1964/65 | C45 Scotch Game |
| 13. R Verstraeten vs J Kolbak |
| 0-1 | 31 | 1965 | Niemeyer Juniors 1964/65 | C48 Four Knights |
| 14. V J Hansen vs J Kolbak |
| 0-1 | 24 | 1965 | Danish Championship | D47 Queen's Gambit Declined Semi-Slav |
| 15. S Hamann vs J Kolbak |
| 1-0 | 41 | 1965 | Danish Championship | B85 Sicilian, Scheveningen, Classical |
| 16. S Holm vs J Kolbak |
| 1-0 | 43 | 1965 | Danish Championship | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 17. J Kolbak vs J Hvenekilde |
| ½-½ | 31 | 1965 | Danish Championship | D55 Queen's Gambit Declined |
| 18. T Haahr vs J Kolbak |
| ½-½ | 37 | 1965 | Danish Championship | B50 Sicilian |
| 19. B Andersen vs J Kolbak |
| 0-1 | 57 | 1965 | Danish Championship | D44 Queen's Gambit Declined Semi-Slav |
| 20. J Kolbak vs M Moe |
| 1-0 | 64 | 1965 | Danish Championship | D80 Grunfeld |
| 21. J Kolbak vs K Blom |
| ½-½ | 43 | 1965 | Danish Championship | A80 Dutch |
| 22. J Kolbak vs O Jakobsen |
| ½-½ | 21 | 1965 | Danish Championship | D93 Grunfeld, with Bf4 & e3 |
| 23. J Kolbak vs S From |
| 0-1 | 30 | 1965 | Danish Championship | A48 King's Indian |
| 24. J Kolbak vs P Norby |
| ½-½ | 40 | 1965 | Danish Championship | E91 King's Indian |
| 25. J Kolbak vs D Neukirch |
| 1-0 | 39 | 1965 | World Student Team Championship Final-A | E11 Bogo-Indian Defense |
Kibitzing
