| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. M Golubev vs I Piven |
 | 0-1 | 46 | 1984 | Ukraine jr ChT, Evpatoria | B32 Sicilian |
| 2. J Daxinger vs I Piven |
| 0-1 | 34 | 1991 | Werfen Open-A | B27 Sicilian |
| 3. I Piven vs H Lotzien |
| ½-½ | 56 | 1991 | Werfen Open-A | D10 Queen's Gambit Declined Slav |
| 4. S Lohou vs I Piven |
| 0-1 | 45 | 1991 | Werfen Open-A | B22 Sicilian, Alapin |
| 5. I Piven vs P Kranzl |
| ½-½ | 27 | 1991 | Werfen Open-A | E62 King's Indian, Fianchetto |
| 6. A Burger vs I Piven |
| 0-1 | 41 | 1991 | Werfen Open-A | B27 Sicilian |
| 7. I Piven vs V Ikonnikov |
| ½-½ | 56 | 1991 | Werfen Open-A | A15 English |
| 8. S Janovsky vs I Piven |
| 0-1 | 42 | 1991 | Werfen Open-A | B15 Caro-Kann |
| 9. I Piven vs Y Dokhoian |
| ½-½ | 37 | 1991 | Werfen Open-A | A04 Reti Opening |
| 10. L Neckar vs I Piven |
| ½-½ | 32 | 1991 | Werfen Open-A | A41 Queen's Pawn Game (with ...d6) |
| 11. I Piven vs Korneev |
| 0-1 | 57 | 1992 | Werfen op-A | E06 Catalan, Closed, 5.Nf3 |
| 12. K Pinkas vs I Piven |
| 0-1 | 45 | 1992 | Werfen op-A | B27 Sicilian |
| 13. I Piven vs Y Dokhoian |
| 0-1 | 33 | 1993 | Cuxhaven Open | E04 Catalan, Open, 5.Nf3 |
| 14. I Piven vs L Dobrovolsky |
| ½-½ | 54 | 1993 | Cuxhaven Open | D02 Queen's Pawn Game |
| 15. I Piven vs V Kuporosov |
| ½-½ | 52 | 1993 | Cuxhaven Open | B10 Caro-Kann |
| 16. A Adamski vs I Piven |
| 1-0 | 25 | 1993 | Cuxhaven Open | A04 Reti Opening |
| 17. S Kalinitschew vs I Piven |
| ½-½ | 22 | 1993 | Cuxhaven Open | D07 Queen's Gambit Declined, Chigorin Defense |
| 18. I Piven vs V Isupov |
| 0-1 | 44 | 1994 | Budapest FS05 IM | E90 King's Indian |
| 19. I Piven vs K Pinkas |
| 1-0 | 55 | 1994 | Werfen op-A | A20 English |
| 20. I Piven vs Y Kruppa |
| ½-½ | 48 | 1994 | Werfen op-A | A37 English, Symmetrical |
| 21. E Saler-Grafenberger vs I Piven |
| 0-1 | 18 | 1994 | Velden Open | A25 English |
| 22. I Piven vs T Markowski |
| 0-1 | 58 | 1994 | Velden Open | E17 Queen's Indian |
| 23. I Piven vs H Pilaj |
| 1-0 | 17 | 1994 | Velden Open | E17 Queen's Indian |
| 24. I Piven vs N Gelbmann |
| ½-½ | 53 | 1995 | Werfen op-A | E62 King's Indian, Fianchetto |
| 25. M Womacka vs I Piven |
| 1-0 | 41 | 1995 | Werfen op-A | B27 Sicilian |
Kibitzing
