| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. de Firmian vs K Thorsteins |
| 1-0 | 28 | 1982 | Gausdal International | B17 Caro-Kann, Steinitz Variation |
| 52. K Thorsteins vs J Hector |
| ½-½ | 37 | 1982 | Gausdal International | D17 Queen's Gambit Declined Slav |
| 53. Kudrin vs K Thorsteins |
| 1-0 | 23 | 1983 | Hamar op | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 54. K Thorsteins vs W J Donaldson |
| 1-0 | 27 | 1983 | Hamar op | A48 King's Indian |
| 55. L Bass vs K Thorsteins |
| 1-0 | 35 | 1983 | Hamar op | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 56. D Sahovic vs K Thorsteins |
| 1-0 | 45 | 1983 | Bela Crkva Open | E92 King's Indian |
| 57. B Krsnik vs K Thorsteins |
| 1-0 | 23 | 1983 | Bela Crkva Open | B07 Pirc |
| 58. K Thorsteins vs R Mujagic |
| 1-0 | 40 | 1983 | Bela Crkva Open | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 59. K Thorsteins vs I Zivanovic |
| ½-½ | 38 | 1983 | Bela Crkva Open | A45 Queen's Pawn Game |
| 60. J Nikolac vs K Thorsteins |
| ½-½ | 51 | 1983 | Bela Crkva Open | A48 King's Indian |
| 61. K Stojanovski vs K Thorsteins |
| 0-1 | 52 | 1983 | Bela Crkva Open | B06 Robatsch |
| 62. N Vasovski vs K Thorsteins |
| 0-1 | 33 | 1983 | Bela Crkva Open | A49 King's Indian, Fianchetto without c4 |
| 63. K Thorsteins vs D Ivkovic |
| ½-½ | 39 | 1983 | Bela Crkva Open | B00 Uncommon King's Pawn Opening |
| 64. K Thorsteins vs J Barth |
| 1-0 | 36 | 1983 | Bela Crkva Open | C50 Giuoco Piano |
| 65. K Thorsteins vs B Ikonic |
| 1-0 | 49 | 1983 | Bela Crkva Open | B96 Sicilian, Najdorf |
| 66. L Christiansen vs K Thorsteins |
| ½-½ | 47 | 1984 | Reykjavik Open | D59 Queen's Gambit Declined, Tartakower |
| 67. K Thorsteins vs Balashov |
| ½-½ | 29 | 1984 | Reykjavik Open | B62 Sicilian, Richter-Rauzer |
| 68. R Byrne vs K Thorsteins |
| 0-1 | 32 | 1984 | Reykjavik Open | B64 Sicilian, Richter-Rauzer Attack |
| 69. K Thorsteins vs Lobron |
| ½-½ | 46 | 1984 | Reykjavik Open | B18 Caro-Kann, Classical |
| 70. Chandler vs K Thorsteins |
| 1-0 | 43 | 1984 | Reykjavik Open | B63 Sicilian, Richter-Rauzer Attack |
| 71. K Thorsteins vs K Burger |
| 1-0 | 22 | 1984 | Reykjavik Open | E11 Bogo-Indian Defense |
| 72. Alburt vs K Thorsteins |
| ½-½ | 38 | 1984 | Reykjavik Open | A45 Queen's Pawn Game |
| 73. G Sigurjonsson vs K Thorsteins |
| 0-1 | 46 | 1984 | Reykjavik Open | B57 Sicilian |
| 74. K Thorsteins vs V Zaltsman |
| 1-0 | 39 | 1984 | Reykjavik Open | D12 Queen's Gambit Declined Slav |
| 75. K Thorsteins vs Shamkovich |
| ½-½ | 31 | 1984 | Reykjavik Open | B45 Sicilian, Taimanov |
Kibitzing
