| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 226. R Cardoso vs E Torre |
| 0-1 | 53 | 1977 | Marlboro Chess Classic | B08 Pirc, Classical |
| 227. H Ardiansyah vs R Cardoso |
| 1-0 | 78 | 1977 | Marlboro Chess Classic | E50 Nimzo-Indian, 4.e3 O-O 5.Nf3, without ...d5 |
| 228. R Cardoso vs Chandler |
| 1-0 | 36 | 1977 | Marlboro Chess Classic | A15 English |
| 229. J Sampouw vs R Cardoso |
| ½-½ | 38 | 1977 | Marlboro Chess Classic | B28 Sicilian, O'Kelly Variation |
| 230. R Cardoso vs T Shaw |
| 1-0 | 41 | 1977 | Marlboro Chess Classic | A36 English |
| 231. R Naranja vs R Cardoso |
| ½-½ | 19 | 1977 | Marlboro Chess Classic | A16 English |
| 232. R Cardoso vs M Sharif |
| 0-1 | 36 | 1977 | Marlboro Chess Classic | C78 Ruy Lopez |
| 233. R Cardoso vs R Mascarinas |
| 0-1 | 85 | 1978 | 1st Burroughs Computers Grandmaster | A15 English |
| 234. R Cardoso vs J Sampouw |
| ½-½ | 41 | 1978 | 1st Burroughs Computers Grandmaster | A45 Queen's Pawn Game |
| 235. K Shirazi vs R Cardoso |
| 1-0 | 43 | 1978 | 1st Burroughs Computers Grandmaster | B06 Robatsch |
| 236. R Cardoso vs E Torre |
| 0-1 | 62 | 1978 | 1st Burroughs Computers Grandmaster | A20 English |
| 237. H Suradiradja vs R Cardoso |
| 0-1 | 34 | 1978 | 1st Burroughs Computers Grandmaster | B27 Sicilian |
| 238. R Cardoso vs O Sarapu |
| 0-1 | 60 | 1978 | 1st Burroughs Computers Grandmaster | A15 English |
| 239. R J Sutton vs R Cardoso |
| 0-1 | 29 | 1978 | 1st Burroughs Computers Grandmaster | B06 Robatsch |
| 240. R Cardoso vs V Small |
| 0-1 | 46 | 1978 | 1st Burroughs Computers Grandmaster | B23 Sicilian, Closed |
| 241. E M Green vs R Cardoso |
| ½-½ | 40 | 1978 | 1st Burroughs Computers Grandmaster | A40 Queen's Pawn Game |
| 242. R Cardoso vs Chandler |
 | 1-0 | 36 | 1978 | 1st Burroughs Computers Grandmaster | A40 Queen's Pawn Game |
| 243. Quinteros vs R Cardoso |
| 1-0 | 42 | 1978 | 1st Burroughs Computers Grandmaster | A40 Queen's Pawn Game |
| 244. R Cardoso vs M Sharif |
| ½-½ | 14 | 1978 | 1st Burroughs Computers Grandmaster | D10 Queen's Gambit Declined Slav |
| 245. R Cardoso vs I Rogers |
| 0-1 | 52 | 1979 | Manila Open | A36 English |
| 246. R Cardoso vs Bronstein |
| ½-½ | 36 | 1980 | Goglidze Memorial | C82 Ruy Lopez, Open |
| 247. S Garcia Martinez vs R Cardoso |
| ½-½ | 44 | 1980 | Goglidze Memorial | B06 Robatsch |
| 248. Bagirov vs R Cardoso |
| 1-0 | 49 | 1980 | Goglidze Memorial | A17 English |
| 249. R Cardoso vs Gufeld |
| 0-1 | 38 | 1980 | Goglidze Memorial | B70 Sicilian, Dragon Variation |
| 250. G Zaichik vs R Cardoso |
| 1-0 | 77 | 1980 | Goglidze Memorial | E04 Catalan, Open, 5.Nf3 |
Kibitzing
