| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. A C Rocha vs S H Trindade |
| 1-0 | 34 | 1983 | Curitiba | B98 Sicilian, Najdorf |
| 27. A Resende vs S H Trindade |
| ½-½ | 19 | 1983 | Curitiba | B08 Pirc, Classical |
| 28. S H Trindade vs H Borghi |
| ½-½ | 50 | 1983 | Curitiba | C63 Ruy Lopez, Schliemann Defense |
| 29. S H Trindade vs C Braga |
| 0-1 | 24 | 1983 | Curitiba | B86 Sicilian, Fischer-Sozin Attack |
| 30. S H Trindade vs Salov |
| 0-1 | 45 | 1983 | World Junior Championship | B25 Sicilian, Closed |
| 31. Dlugy vs S H Trindade |
 | 0-1 | 35 | 1983 | World Junior Championship | D32 Queen's Gambit Declined, Tarrasch |
| 32. I Stohl vs S H Trindade |
| 1-0 | 27 | 1983 | World Junior Championship | A04 Reti Opening |
| 33. S H Trindade vs J R Kennedy |
| 1-0 | 53 | 1983 | World Junior Championship | B02 Alekhine's Defense |
| 34. T van der Meer vs S H Trindade |
| 0-1 | 43 | 1983 | World Junior Championship | A70 Benoni, Classical with 7.Nf3 |
| 35. S H Trindade vs J Hickl |
| 1-0 | 33 | 1983 | World Junior Championship | A07 King's Indian Attack |
| 36. G Milos vs S H Trindade |
| ½-½ | 65 | 1983 | World Junior Championship | A71 Benoni, Classical, 8.Bg5 |
| 37. S H Trindade vs E Grivas |
| 1-0 | 29 | 1983 | World Junior Championship | C80 Ruy Lopez, Open |
| 38. P Staniszewski vs S H Trindade |
| 0-1 | 40 | 1983 | World Junior Championship | B92 Sicilian, Najdorf, Opocensky Variation |
| 39. S H Trindade vs K Georgiev |
| 0-1 | 55 | 1983 | World Junior Championship | A07 King's Indian Attack |
| 40. S H Trindade vs A Greenfeld |
| 1-0 | 48 | 1983 | World Junior Championship | A00 Uncommon Opening |
| 41. J Klinger vs S H Trindade |
| ½-½ | 50 | 1983 | World Junior Championship | B98 Sicilian, Najdorf |
| 42. S Saeed vs S H Trindade |
| 1-0 | 51 | 1983 | World Junior Championship | A40 Queen's Pawn Game |
| 43. S H Trindade vs P C de Souza Haro |
| ½-½ | 40 | 1985 | Brazilian Championship | E62 King's Indian, Fianchetto |
| 44. H Cunha dos Santos vs S H Trindade |
| 1-0 | 55 | 1985 | Brazilian Championship | B10 Caro-Kann |
| 45. S H Trindade vs I B de Souza |
| 1-0 | 63 | 1985 | Brazilian Championship | D34 Queen's Gambit Declined, Tarrasch |
| 46. P Camara vs S H Trindade |
| 0-1 | 33 | 1985 | Brazilian Championship | A46 Queen's Pawn Game |
| 47. S H Trindade vs G Junqueira |
| 1-0 | 52 | 1985 | Brazilian Championship | A07 King's Indian Attack |
| 48. S Cunha Pereira vs S H Trindade |
| 0-1 | 25 | 1985 | Brazilian Championship | B95 Sicilian, Najdorf, 6...e6 |
| 49. S H Trindade vs A S Segal |
| ½-½ | 11 | 1985 | Brazilian Championship | A04 Reti Opening |
| 50. J Mann de Toledo vs S H Trindade |
| ½-½ | 38 | 1985 | Brazilian Championship | D55 Queen's Gambit Declined |
Kibitzing
