Johann Hjartarson
Johann Hjartarson Repertoire with White pieces
| ECO | Opening | Games |
| E11 | Bogo-Indian defence | 16 games |
| E15 | Queen's Indian, 4.g3 | 14 games |
| C18 | French, Winawer, advance variation | 11 games |
| A29 | English, four knights, kingside fianchetto | 11 games |
Johann Hjartarson Repertoire with Black pieces
| ECO | Opening | Games |
| E15 | Queen's Indian, 4.g3 | 34 games |
| E12 | Queen's Indian defence | 25 games |
| A30 | English, symmetrical variation | 22 games |
| C92 | Ruy Lopez, closed, 9.h3 | 16 games |
ICELAND
