| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Keene vs Hjartarson |
  | 1-0 | 43 | 1981 | England v. Iceland (Telex) | E41 Nimzo-Indian |
| 2. A Cherepkov vs Hjartarson |
| ½-½ | 24 | 1984 | White Nights | E41 Nimzo-Indian |
| 3. C Hansen vs Hjartarson |
| 0-1 | 26 | 1985 | Gausdal Zonal | E41 Nimzo-Indian |
| 4. T Meier vs Hjartarson |
| 0-1 | 36 | 1994 | New York Open | E41 Nimzo-Indian |
| 5. I Ibragimov vs Hjartarson |
| 0-1 | 36 | 1994 | Reykjavik Open | E41 Nimzo-Indian |
| 6. N Stanec vs Hjartarson |
| ½-½ | 56 | 1994 | Moscow Olympiad | E41 Nimzo-Indian |
Kibitzing
