| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. E German vs E Cotta |
| 1-0 | 21 | 1961 | CXBH | C01 French, Exchange |
| 2. E Cotta vs E German |
| 0-1 | 26 | 1963 | A.P.Solmucci | C48 Four Knights |
| 3. M Miranda vs E Cotta |
| 1-0 | 53 | 1965 | BRA zn po | C15 French, Winawer |
| 4. Gastao Roubach Neto vs E Cotta |
| 0-1 | 27 | 1965 | BRA zn | B92 Sicilian, Najdorf, Opocensky Variation |
| 5. E German vs E Cotta |
| 1-0 | 42 | 1965 | BRA zn | C01 French, Exchange |
| 6. S Farias vs E Cotta |
| 0-1 | 52 | 1965 | BRA zn | E24 Nimzo-Indian, Samisch |
| 7. E Cotta vs J J Lemos |
| ½-½ | 39 | 1965 | BRA zn | C11 French |
| 8. E Cotta vs B Entin |
| ½-½ | 28 | 1965 | BRA zn | A04 Reti Opening |
| 9. E Cotta vs Francisco Almeida |
| 1-0 | 26 | 1965 | BRA zn | B70 Sicilian, Dragon Variation |
| 10. E Cotta vs Jorge Aguiar |
| 1-0 | 37 | 1965 | BRA zn | B50 Sicilian |
| 11. E Cotta vs M E de Freitas |
| ½-½ | 30 | 1965 | Brazilian Championship | C93 Ruy Lopez, Closed, Smyslov Defense |
| 12. E Cotta vs J de Souza Mendes |
| ½-½ | 65 | 1965 | Brazilian Championship | A42 Modern Defense, Averbakh System |
| 13. P Toth vs E Cotta |
| ½-½ | 41 | 1965 | Brazilian Championship | A00 Uncommon Opening |
| 14. Mecking vs E Cotta |
 | 1-0 | 38 | 1965 | Brazilian Championship | A39 English, Symmetrical, Main line with d4 |
| 15. E Cotta vs C Peixoto |
 | 1-0 | 37 | 1965 | Brazilian Championship | C93 Ruy Lopez, Closed, Smyslov Defense |
| 16. E Cotta vs E Stenzel |
| 1-0 | 22 | 1965 | Brazilian Championship | C54 Giuoco Piano |
| 17. O Gadia vs E Cotta |
| ½-½ | 47 | 1965 | Brazilian Championship | B25 Sicilian, Closed |
| 18. E Asfora vs E Cotta |
| ½-½ | 15 | 1965 | Brazilian Championship | A27 English, Three Knights System |
| 19. E Cotta vs M Miranda |
| ½-½ | 17 | 1965 | Brazilian Championship | D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de |
| 20. J Pinto Paiva vs E Cotta |
| 0-1 | 30 | 1965 | Brazilian Championship | C78 Ruy Lopez |
| 21. A C Rocha vs E Cotta |
| ½-½ | 29 | 1965 | Brazilian Championship | E40 Nimzo-Indian, 4.e3 |
| 22. E Cotta vs F Alves |
| 1-0 | 32 | 1965 | Brazilian Championship | E26 Nimzo-Indian, Samisch |
| 23. E Cotta vs R Camara |
| 1-0 | 10 | 1965 | BRA-ch+ | B72 Sicilian, Dragon |
| 24. E Cotta vs L Tavares da Silva |
| 0-1 | 34 | 1965 | Brazilian Championship | B28 Sicilian, O'Kelly Variation |
| 25. H Camara vs E Cotta |
| 0-1 | 65 | 1965 | Brazilian Championship | D95 Grunfeld |
Kibitzing
