| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Minev vs E Ungureanu |
| ½-½ | 46 |
1967 |
Sofia tt | B21 Sicilian, 2.f4 and 2.d4 |
| 2. E Ungureanu vs Minev |
| ½-½ | 24 |
1967 |
Sofia tt | D43 Queen's Gambit Declined Semi-Slav |
| 3. Huebner vs E Ungureanu |
| ½-½ | 17 |
1968 |
Lugano ol (Men) | A25 English |
| 4. Smyslov vs E Ungureanu |
| 1-0 | 44 |
1968 |
Lugano | A25 English |
| 5. E Ungureanu vs H Rossetto |
| ½-½ | 28 |
1968 |
Lugano ol (Men) fin-A | A40 Queen's Pawn Game |
| 6. E Ungureanu vs Ribli |
| 1-0 | 41 |
1970 |
Siegen (ol) | D92 Grunfeld, 5.Bf4 |
| 7. E Ungureanu vs Smyslov |
| ½-½ | 32 |
1970 |
Olympiad, Siegen (Germany) | E43 Nimzo-Indian, Fischer Variation |
| 8. E Ungureanu vs Bobotsov |
| ½-½ | 42 |
1971 |
Bucharest | E36 Nimzo-Indian, Classical |
| 9. Jansa vs E Ungureanu |
| 0-1 | 32 |
1971 |
Bucharest | B60 Sicilian, Richter-Rauzer |
| 10. E Ungureanu vs Ribli |
| ½-½ | 41 |
1972 |
Skopje (ol) | D80 Grunfeld |
| 11. Ghizdavu vs E Ungureanu |
| 1-0 | 20 |
1972 |
Bucharest (Romania) | C55 Two Knights Defense |
| 12. E Ungureanu vs Gipslis |
| 0-1 | 19 |
1972 |
Lublin (Poland) | E39 Nimzo-Indian, Classical, Pirc Variation |
| 13. Karpov vs E Ungureanu |
 | 1-0 | 29 |
1972 |
15, Skopje ol final | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 14. E Ungureanu vs Plachetka |
| 0-1 | 38 |
1972 |
Lublin Festival 8th | E59 Nimzo-Indian, 4.e3, Main line |
| 15. Matulovic vs E Ungureanu |
| ½-½ | 23 |
1972 |
Skopje ol (Men) fin-A | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 16. L Espig vs E Ungureanu |
| 1-0 | 33 |
1972 |
Timisoara | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 17. E Ungureanu vs Taimanov |
| 1-0 | 41 |
1973 |
Bucharest | E91 King's Indian |
| 18. E Ungureanu vs Matulovic |
| ½-½ | 43 |
1973 |
EU-chT (Men) | A42 Modern Defense, Averbakh System |
| 19. E Ungureanu vs Balashov |
| ½-½ | 26 |
1973 |
Bath EUR ch tt | D34 Queen's Gambit Declined, Tarrasch |
| 20. Lutikov vs E Ungureanu |
| 1-0 | 35 |
1975 |
Bucharest | B38 Sicilian, Accelerated Fianchetto, Maroczy Bind, 6.Be3 |
| 21. Minev vs E Ungureanu |
| 1-0 | 69 |
1975 |
Bucharest | B31 Sicilian, Rossolimo Variation |
| 22. M Stean vs E Ungureanu |
| 1-0 | 33 |
1976 |
Netanya 18th | B96 Sicilian, Najdorf |
| 23. Pinter vs E Ungureanu |
 | 1-0 | 34 |
1976 |
Bucharest (Romania) | B95 Sicilian, Najdorf, 6...e6 |
| 24. R Van der Broek vs E Ungureanu |
| 0-1 | 31 |
1976 |
Zurich | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 25. J Lechtynsky vs E Ungureanu |
| 0-1 | 56 |
1977 |
EU-chT (Men) | B22 Sicilian, Alapin |