| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. I Aloni vs B Andersen |
| 1-0 | 42 |
1954 |
Amsterdam ol (Men) | E81 King's Indian, Samisch |
| 2. B Andersen vs G P Thibaut |
| 1-0 | 40 |
1954 |
Amsterdam ol (Men) | D15 Queen's Gambit Declined Slav |
| 3. C Rivera vs B Andersen |
| 1-0 | 71 |
1954 |
Amsterdam ol (Men) | E41 Nimzo-Indian |
| 4. B Andersen vs J Jerolim |
| 1-0 | 30 |
1954 |
Amsterdam ol (Men) | B32 Sicilian |
| 5. E Weichselbaumer vs B Andersen |
| 1-0 | 27 |
1954 |
Amsterdam ol (Men) | E76 King's Indian, Four Pawns Attack |
| 6. B Andersen vs V Bergraser |
| 1-0 | 35 |
1954 |
Amsterdam ol (Men) | D50 Queen's Gambit Declined |
| 7. J Sefc vs B Andersen |
| 1-0 | 21 |
1956 |
Dresden it | B95 Sicilian, Najdorf, 6...e6 |
| 8. Averbakh vs B Andersen |
 | 1-0 | 30 |
1956 |
Dresden it | E75 King's Indian, Averbakh, Main line |
| 9. Uhlmann vs B Andersen |
| 1-0 | 36 |
1956 |
Dresden it | E79 King's Indian, Four Pawns Attack, Main line |
| 10. I Bilek vs B Andersen |
| 1-0 | 28 |
1956 |
Dresden it | B63 Sicilian, Richter-Rauzer Attack |
| 11. Kholmov vs B Andersen |
| 1-0 | 31 |
1956 |
Dresden it | E76 King's Indian, Four Pawns Attack |
| 12. Polugaevsky vs B Andersen |
| 1-0 | 34 |
1957 |
Reykjavik tt stud-WM | B96 Sicilian, Najdorf |
| 13. B Andersen vs A Prameshuber |
| 1-0 | 52 |
1958 |
13th olm qual. group 1 | E74 King's Indian, Averbakh, 6...c5 |
| 14. Prins vs B Andersen |
| 1-0 | 23 |
1958 |
13th olm final B | B50 Sicilian |
| 15. J H Donner vs B Andersen |
| 1-0 | 37 |
1958 |
13th olm qual. group 1 | E60 King's Indian Defense |
| 16. B Andersen vs B Canton |
| 1-0 | 39 |
1958 |
13th olm qual. group 1 | E80 King's Indian, Samisch Variation |
| 17. O Sterner vs B Andersen |
| 1-0 | 24 |
1958 |
13th olm final B | D25 Queen's Gambit Accepted |
| 18. B Andersen vs C Lemoine |
| 1-0 | 55 |
1958 |
13th olm final B | E81 King's Indian, Samisch |
| 19. B Andersen vs Larsen |
| 1-0 | 81 |
1960 |
DEN-ch playoff | B25 Sicilian, Closed |
| 20. B Kolvig vs B Andersen |
| 1-0 | 40 |
1960 |
Nimzowitsch mem | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 21. Geller vs B Andersen |
| 1-0 | 42 |
1960 |
Nimzowitsch mem | D93 Grunfeld, with Bf4 & e3 |
| 22. B Andersen vs C Orbaan |
| 1-0 | 41 |
1960 |
Nimzowitsch mem | A19 English, Mikenas-Carls, Sicilian Variation |
| 23. B Andersen vs P M Nielsen |
| 1-0 | 37 |
1960 |
Nimzowitsch mem | B18 Caro-Kann, Classical |
| 24. B Andersen vs S Hamann |
| 1-0 | 41 |
1960 |
Nimzowitsch mem | E92 King's Indian |
| 25. Larsen vs B Andersen |
| 1-0 | 40 |
1960 |
Nimzowitsch mem | A07 King's Indian Attack |
