Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. A Seppanen vs A Ornstein |
| 0-1 | 33 | 1992 | Helsinki Club-ch | E68 King's Indian, Fianchetto, Classical Variation, 8.e4 |
2. N Gaprindashvili vs A Seppanen |
| 0-1 | 40 | 1992 | Helsinki Open | A74 Benoni, Classical, 9...a6, 10.a4 |
3. A Seppanen vs Dreev |
| 0-1 | 28 | 1992 | Helsinki Open | D13 Queen's Gambit Declined Slav, Exchange Variation |
4. A Seppanen vs T Viljava |
| ½-½ | 27 | 1994 | FIN-chT | A37 English, Symmetrical |
5. A Seppanen vs T Keskisarja |
| ½-½ | 46 | 1994 | Helsinki-ch | A29 English, Four Knights, Kingside Fianchetto |
6. A Seppanen vs T Keskisarja |
| 0-1 | 75 | 1996 | Helsinki op | A29 English, Four Knights, Kingside Fianchetto |
7. A Veingold vs A Seppanen |
| 1-0 | 58 | 1997 | Helsinki We G | A70 Benoni, Classical with 7.Nf3 |
8. A Veingold vs A Seppanen |
| 1-0 | 30 | 1997 | Helsinki We SKF op | A70 Benoni, Classical with 7.Nf3 |
9. A Seppanen vs T Keskisarja |
| ½-½ | 45 | 1997 | Helsinki We G | A29 English, Four Knights, Kingside Fianchetto |
10. T Keskisarja vs A Seppanen |
| ½-½ | 40 | 1998 | Turku We TuTS op | D13 Queen's Gambit Declined Slav, Exchange Variation |
11. A Seppanen vs K Sorri |
| ½-½ | 67 | 1999 | Helsinki op2 | A29 English, Four Knights, Kingside Fianchetto |
12. A Seppanen vs M Nouro |
 | 0-1 | 40 | 2000 | Jyvaskyla op 10th | A10 English |
13. A Saastamoinen vs A Seppanen |
| ½-½ | 26 | 2000 | FIN-chT 2000/01 | A07 King's Indian Attack |
14. A Seppanen vs J Partanen |
| 1-0 | 49 | 2000 | FIN-chT 2000/01 | D57 Queen's Gambit Declined, Lasker Defense |
15. A Issakainen vs A Seppanen |
| ½-½ | 27 | 2000 | FIN-chT 2000/01 | D55 Queen's Gambit Declined |
16. A Seppanen vs K Nieminen |
| ½-½ | 20 | 2000 | FIN-chT 2000/01 | A29 English, Four Knights, Kingside Fianchetto |
17. P Paldanius vs A Seppanen |
| 1-0 | 53 | 2000 | FIN-chT 2000/01 | D46 Queen's Gambit Declined Semi-Slav |
18. G Osterman vs A Seppanen |
| ½-½ | 70 | 2001 | FIN-chT 2000/01 | B40 Sicilian |