| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. L M Kovacs vs A Nikitin |
| 1-0 | 32 | 1960 | WchT U26 07th | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 2. L M Kovacs vs Avner |
| 1-0 | 17 | 1964 | WchT U26 11th | B06 Robatsch |
| 3. L M Kovacs vs J Sloth |
| 1-0 | 36 | 1964 | WchT U26 11th fin-A | B14 Caro-Kann, Panov-Botvinnik Attack |
| 4. L M Kovacs vs I Polgar |
| 1-0 | 41 | 1965 | 20th Hungarian Championship | A45 Queen's Pawn Game |
| 5. E Haag vs L M Kovacs |
| 0-1 | 56 | 1965 | 20th Hungarian Championship | E46 Nimzo-Indian |
| 6. P Szilagyi vs L M Kovacs |
| 0-1 | 66 | 1965 | 20th Hungarian Championship | C77 Ruy Lopez |
| 7. A Ozsvath vs L M Kovacs |
| ½-½ | 72 | 1965 | 20th Hungarian Championship | C84 Ruy Lopez, Closed |
| 8. L Navarovszky vs L M Kovacs |
| 1-0 | 46 | 1965 | 20th Hungarian Championship | D25 Queen's Gambit Accepted |
| 9. L M Kovacs vs L Sapi |
| ½-½ | 40 | 1965 | 20th Hungarian Championship | A45 Queen's Pawn Game |
| 10. L M Kovacs vs P Dely |
| ½-½ | 21 | 1965 | 20th Hungarian Championship | E11 Bogo-Indian Defense |
| 11. J Hajtun vs L M Kovacs |
| 1-0 | 42 | 1965 | 20th Hungarian Championship | A28 English |
| 12. L M Kovacs vs F Jenei |
| 1-0 | 70 | 1965 | 20th Hungarian Championship | C64 Ruy Lopez, Classical |
| 13. L M Kovacs vs J Flesch |
| 1-0 | 37 | 1965 | 20th Hungarian Championship | B88 Sicilian, Fischer-Sozin Attack |
| 14. L Liptay vs L M Kovacs |
| ½-½ | 17 | 1965 | 20th Hungarian Championship | D37 Queen's Gambit Declined |
| 15. L Barczay vs L M Kovacs |
| 1-0 | 51 | 1965 | 20th Hungarian Championship | C97 Ruy Lopez, Closed, Chigorin |
| 16. I Farago vs L M Kovacs |
| 1-0 | 37 | 1965 | 20th Hungarian Championship | D37 Queen's Gambit Declined |
| 17. L M Kovacs vs J Szily |
| 0-1 | 56 | 1965 | 20th Hungarian Championship | B46 Sicilian, Taimanov Variation |
| 18. L M Kovacs vs J Pogats |
| ½-½ | 37 | 1965 | 20th Hungarian Championship | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 19. L M Kovacs vs I Bilek |
| ½-½ | 51 | 1965 | 20th Hungarian Championship | B30 Sicilian |
| 20. Forintos vs L M Kovacs |
| 1-0 | 82 | 1965 | 20th Hungarian Championship | A30 English, Symmetrical |
| 21. L M Kovacs vs G Kluger |
 | 0-1 | 32 | 1965 | 20th Hungarian Championship | C59 Two Knights |
| 22. L M Kovacs vs K Honfi |
| 0-1 | 25 | 1965 | 20th Hungarian Championship | C81 Ruy Lopez, Open, Howell Attack |
| 23. N Krogius vs L M Kovacs |
| 1-0 | 33 | 1965 | Liberation Tournament | D35 Queen's Gambit Declined |
| 24. L M Kovacs vs Polugaevsky |
| 0-1 | 33 | 1965 | Liberation Tournament | B42 Sicilian, Kan |
| 25. V Osnos vs L M Kovacs |
| 1-0 | 60 | 1965 | Liberation Tournament | D45 Queen's Gambit Declined Semi-Slav |
Kibitzing
