| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. A Lein vs Jansa |
| 0-1 | 30 |
1961 |
Moscow | B46 Sicilian, Taimanov Variation |
| 2. Keres vs Jansa |
| ½-½ | 20 |
1972 |
Sarajevo | B46 Sicilian, Taimanov Variation |
| 3. J Franzen vs Jansa |
| 0-1 | 50 |
1972 |
Trinec | B46 Sicilian, Taimanov Variation |
| 4. Plachetka vs Jansa |
| ½-½ | 23 |
1972 |
Trinec | B46 Sicilian, Taimanov Variation |
| 5. Velimirovic vs Jansa |
| ½-½ | 32 |
1972 |
Parcetic mem 5th | B46 Sicilian, Taimanov Variation |
| 6. R Bellin vs Jansa |
| 0-1 | 37 |
1973 |
Amsterdam IBM II | B46 Sicilian, Taimanov Variation |
| 7. L Zinn vs Jansa |
| 1-0 | 54 |
1973 |
Leipzig | B46 Sicilian, Taimanov Variation |
| 8. H Messing vs Jansa |
| 0-1 | 41 |
1973 |
Vrnjacka Banja | B46 Sicilian, Taimanov Variation |
| 9. Velimirovic vs Jansa |
| 1-0 | 44 |
1973 |
Vrnjacka Banja | B46 Sicilian, Taimanov Variation |
| 10. Kaplan vs Jansa |
| 0-1 | 35 |
1974 |
Amsterdam | B46 Sicilian, Taimanov Variation |
| 11. Velimirovic vs Jansa |
| 0-1 | 48 |
1974 |
Amsterdam | B46 Sicilian, Taimanov Variation |
| 12. P Garbett vs Jansa |
| 0-1 | 29 |
1974 |
Nice | B46 Sicilian, Taimanov Variation |
| 13. Vogt vs Jansa |
| ½-½ | 19 |
1976 |
Budapest TUN | B46 Sicilian, Taimanov Variation |
| 14. K Honfi vs Jansa |
| 0-1 | 41 |
1976 |
Budapest TUN | B46 Sicilian, Taimanov Variation |
| 15. R Primavera vs Jansa |
| 0-1 | 21 |
1976 |
Cirella di Diamante | B46 Sicilian, Taimanov Variation |
| 16. I Zaitsev vs Jansa |
| ½-½ | 43 |
1976 |
Sochi | B46 Sicilian, Taimanov Variation |
| 17. F Borkowski vs Jansa |
| 0-1 | 63 |
1979 |
Polanica Zdroj | B46 Sicilian, Taimanov Variation |
| 18. G Rajna vs Jansa |
| 0-1 | 31 |
1979 |
Sarajevo | B46 Sicilian, Taimanov Variation |
| 19. R Skrobek vs Jansa |
| 1-0 | 39 |
1979 |
Warsaw | B46 Sicilian, Taimanov Variation |
| 20. Velimirovic vs Jansa |
| ½-½ | 68 |
1979 |
Smederevska Palanka | B46 Sicilian, Taimanov Variation |
| 21. Balashov vs Jansa |
| ½-½ | 26 |
1980 |
Sochi | B46 Sicilian, Taimanov Variation |
| 22. A N Panchenko vs Jansa |
 | 1-0 | 30 |
1980 |
Sochi | B46 Sicilian, Taimanov Variation |
| 23. S Martinovic vs Jansa |
| 1-0 | 38 |
1980 |
Zrenjanin | B46 Sicilian, Taimanov Variation |
| 24. Sax vs Jansa |
| 1-0 | 27 |
1982 |
Baile Herculane zt | B46 Sicilian, Taimanov Variation |
| 25. E Mortensen vs Jansa |
| 1-0 | 30 |
1982 |
Helsingor | B46 Sicilian, Taimanov Variation |