| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. R Cardoso vs R Mascarinas |
| 0-1 | 85 | 1978 | 1st Burroughs Computers Grandmaster | A15 English |
| 52. M Sharif vs R Mascarinas |
| ½-½ | 14 | 1978 | 1st Burroughs Computers Grandmaster | A07 King's Indian Attack |
| 53. J Sampouw vs R Mascarinas |
| ½-½ | 47 | 1978 | 1st Burroughs Computers Grandmaster | B73 Sicilian, Dragon, Classical |
| 54. R Mascarinas vs K Shirazi |
| 0-1 | 39 | 1978 | 1st Burroughs Computers Grandmaster | A46 Queen's Pawn Game |
| 55. E Torre vs R Mascarinas |
 | 1-0 | 46 | 1978 | 1st Burroughs Computers Grandmaster | B00 Uncommon King's Pawn Opening |
| 56. R Mascarinas vs H Suradiradja |
| 1-0 | 53 | 1978 | 1st Burroughs Computers Grandmaster | B33 Sicilian |
| 57. O Sarapu vs R Mascarinas |
| ½-½ | 35 | 1978 | 1st Burroughs Computers Grandmaster | C41 Philidor Defense |
| 58. R Mascarinas vs R J Sutton |
| 1-0 | 40 | 1978 | 1st Burroughs Computers Grandmaster | C84 Ruy Lopez, Closed |
| 59. V Small vs R Mascarinas |
| ½-½ | 54 | 1978 | 1st Burroughs Computers Grandmaster | B88 Sicilian, Fischer-Sozin Attack |
| 60. R Mascarinas vs E M Green |
| ½-½ | 23 | 1978 | 1st Burroughs Computers Grandmaster | B40 Sicilian |
| 61. Chandler vs R Mascarinas |
| 0-1 | 45 | 1978 | 1st Burroughs Computers Grandmaster | A46 Queen's Pawn Game |
| 62. R Mascarinas vs Quinteros |
| ½-½ | 11 | 1978 | 1st Burroughs Computers Grandmaster | A07 King's Indian Attack |
| 63. R Mascarinas vs M Sharif |
| 0-1 | 54 | 1978 | Jakarta | E67 King's Indian, Fianchetto |
| 64. E Torre vs R Mascarinas |
| ½-½ | 23 | 1978 | Jakarta | C09 French, Tarrasch, Open Variation, Main line |
| 65. H Suradiradja vs R Mascarinas |
| 0-1 | 64 | 1978 | Jakarta | B83 Sicilian |
| 66. R Mascarinas vs A Bachtiar |
| ½-½ | 87 | 1978 | Jakarta | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 67. K Shirazi vs R Mascarinas |
| ½-½ | 7 | 1978 | Jakarta | C49 Four Knights |
| 68. R Mascarinas vs Chandler |
| ½-½ | 50 | 1978 | Jakarta | D82 Grunfeld, 4.Bf4 |
| 69. C Hon vs R Mascarinas |
| 0-1 | 40 | 1978 | Jakarta | A33 English, Symmetrical |
| 70. R Mascarinas vs L Chiong |
| 1-0 | 37 | 1978 | Jakarta | A07 King's Indian Attack |
| 71. Quinteros vs R Mascarinas |
| 0-1 | 76 | 1978 | Jakarta | E00 Queen's Pawn Game |
| 72. O'Kelly vs R Mascarinas |
| ½-½ | 13 | 1978 | Jakarta | A34 English, Symmetrical |
| 73. R Mascarinas vs C Laird |
| 1-0 | 56 | 1978 | Jakarta | A16 English |
| 74. J Sampouw vs R Mascarinas |
| ½-½ | 60 | 1978 | Jakarta | B40 Sicilian |
| 75. R Mascarinas vs H Ardiansyah |
| 1-0 | 47 | 1978 | Jakarta | A07 King's Indian Attack |
Kibitzing
