| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. I Andreasson vs J Naujokas |
| 1-0 | 38 | 1980 | Benedictine Open | D37 Queen's Gambit Declined |
| 2. M Schlaugat vs I Andreasson |
| 0-1 | 33 | 1980 | Benedictine Open | A45 Queen's Pawn Game |
| 3. I Andreasson vs M Yeo |
| 1-0 | 39 | 1980 | Benedictine Open | D07 Queen's Gambit Declined, Chigorin Defense |
| 4. B Rind vs I Andreasson |
| 0-1 | 54 | 1980 | Benedictine Open | A10 English |
| 5. I Andreasson vs L Lederman |
| ½-½ | 30 | 1980 | Benedictine Open | A01 Nimzovich-Larsen Attack |
| 6. Sax vs I Andreasson |
| 1-0 | 26 | 1980 | Benedictine Open | B09 Pirc, Austrian Attack |
| 7. R Henley vs I Andreasson |
| 1-0 | 29 | 1983 | Lugano Open | E94 King's Indian, Orthodox |
| 8. P Cramling vs I Andreasson |
| 1-0 | 27 | 1987 | Swedish Championship | A56 Benoni Defense |
| 9. I Andreasson vs G Svenn |
| ½-½ | 16 | 1987 | Swedish Championship | A15 English |
| 10. R Winsnes vs I Andreasson |
| ½-½ | 9 | 1987 | Swedish Championship | B08 Pirc, Classical |
| 11. F Hellers vs I Andreasson |
| ½-½ | 41 | 1987 | Swedish Championship | B06 Robatsch |
| 12. M Carlhammar vs I Andreasson |
| ½-½ | 13 | 1987 | Swedish Championship | A42 Modern Defense, Averbakh System |
| 13. I Andreasson vs M Wiedenkeller |
| 0-1 | 54 | 1987 | Swedish Championship | A06 Reti Opening |
| 14. T Welin vs I Andreasson |
| ½-½ | 26 | 1987 | Swedish Championship | D53 Queen's Gambit Declined |
| 15. I Andreasson vs L Schneider |
| ½-½ | 43 | 1987 | Swedish Championship | A07 King's Indian Attack |
| 16. I Andreasson vs C Hartman |
| 1-0 | 54 | 1987 | Swedish Championship | A06 Reti Opening |
| 17. I Andreasson vs C Bergstrom |
| ½-½ | 20 | 1987 | Swedish Championship | B31 Sicilian, Rossolimo Variation |
| 18. I Andreasson vs R Bator |
| ½-½ | 16 | 1987 | Swedish Championship | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 19. I Andreasson vs P Backe |
| ½-½ | 41 | 1987 | Swedish Championship | A07 King's Indian Attack |
| 20. N Renman vs I Andreasson |
| ½-½ | 35 | 1987 | Swedish Championship | A41 Queen's Pawn Game (with ...d6) |
| 21. A Ornstein vs I Andreasson |
| ½-½ | 22 | 1987 | Swedish Championship | A48 King's Indian |
| 22. I Andreasson vs R Wessman |
| 0-1 | 35 | 1987 | Swedish Championship | A04 Reti Opening |
| 23. I Andreasson vs G Barbero |
 | ½-½ | 38 | 1988 | Copenhagen Open | A04 Reti Opening |
| 24. T Ernst vs I Andreasson |
| ½-½ | 15 | 1988 | Copenhagen Open | B07 Pirc |
| 25. I Andreasson vs L Riemersma |
| 1-0 | 53 | 1988 | Copenhagen Open | A04 Reti Opening |
Kibitzing
