I. Pecak
I. Pecak Repertoire with White pieces
| ECO | Opening | Games |
| B21 | Sicilian, Grand Prix attack | 2 games |
| C56 | Two knights defence | 2 games |
| B23 | Sicilian, closed | 1 games |
| B07 | Pirc defence | 1 games |
I. Pecak Repertoire with Black pieces
| ECO | Opening | Games |
| A80 | Dutch | 2 games |
| A85 | Dutch with c4 & Nc3 | 2 games |
| C45 | Scotch game | 2 games |
| B03 | Alekhine's defence | 1 games |




