| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. G W Fonrobert vs J Mangini |
| ½-½ | 34 | 1967 | Brazilian Championship | A28 English |
| 27. L Tavares da Silva vs G W Fonrobert |
| 0-1 | 36 | 1967 | Brazilian Championship | D78 Neo-Grunfeld, 6.O-O c6 |
| 28. G W Fonrobert vs Mecking |
 | ½-½ | 31 | 1967 | Brazilian Championship | C56 Two Knights |
| 29. J Pinto Paiva vs G W Fonrobert |
| 0-1 | 48 | 1967 | Brazilian Championship | B29 Sicilian, Nimzovich-Rubinstein |
| 30. G W Fonrobert vs H Camara |
| 1-0 | 32 | 1967 | Brazilian Championship | D15 Queen's Gambit Declined Slav |
| 31. A C Rocha vs G W Fonrobert |
| 1-0 | 47 | 1967 | Brazilian Championship | E46 Nimzo-Indian |
| 32. G W Fonrobert vs O Gadia |
| 0-1 | 29 | 1967 | Brazilian Championship | B93 Sicilian, Najdorf, 6.f4 |
| 33. G W Fonrobert vs A da Nobrega |
| 0-1 | 22 | 1967 | Brazilian Championship | D80 Grunfeld |
| 34. J Machado Borges vs G W Fonrobert |
| 0-1 | 32 | 1968 | Brazilian Championship | A00 Uncommon Opening |
| 35. G W Fonrobert vs H Camara |
| ½-½ | 18 | 1968 | Brazilian Championship | A43 Old Benoni |
| 36. C Duarte vs G W Fonrobert |
| 0-1 | 31 | 1968 | Brazilian Championship | E38 Nimzo-Indian, Classical, 4...c5 |
| 37. G W Fonrobert vs J Ladeira |
| ½-½ | 37 | 1968 | Brazilian Championship | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 38. J Pinto Paiva vs G W Fonrobert |
| 1-0 | 55 | 1968 | Brazilian Championship | C64 Ruy Lopez, Classical |
| 39. G W Fonrobert vs M Everard Jr |
| 0-1 | 20 | 1968 | Brazilian Championship | B06 Robatsch |
| 40. F Vasconcellos vs G W Fonrobert |
| ½-½ | 37 | 1968 | Brazilian Championship | D01 Richter-Veresov Attack |
| 41. G W Fonrobert vs H van Riemsdijk |
| ½-½ | 19 | 1968 | Brazilian Championship | B72 Sicilian, Dragon |
| 42. A C Souza vs G W Fonrobert |
| 0-1 | 59 | 1968 | Brazilian Championship | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 43. G W Fonrobert vs A C Rocha |
| 0-1 | 74 | 1968 | Brazilian Championship | A00 Uncommon Opening |
| 44. S L Teixeira Mendes vs G W Fonrobert |
| ½-½ | 41 | 1968 | Brazilian Championship | A26 English |
| 45. G W Fonrobert vs F Trois |
| 0-1 | 18 | 1968 | Brazilian Championship | A24 English, Bremen System with ...g6 |
| 46. A de Souza vs G W Fonrobert |
| ½-½ | 24 | 1968 | Brazilian Championship | C81 Ruy Lopez, Open, Howell Attack |
| 47. Korchnoi vs G W Fonrobert |
| 0-1 | 60 | 1978 | Korchnoi Simul, 40b Brasilia | C41 Philidor Defense |
| 48. G W Fonrobert vs Z Kornin |
| 0-1 | 52 | 1982 | BRA-ch sf | C56 Two Knights |
| 49. R P del Bosco vs G W Fonrobert |
| ½-½ | 23 | 1984 | Brazilian Championship | D32 Queen's Gambit Declined, Tarrasch |
| 50. G W Fonrobert vs H Cunha dos Santos |
| ½-½ | 37 | 1984 | Brazilian Championship | C55 Two Knights Defense |
Kibitzing
