Yrjo A Rantanen
Yrjo A Rantanen Repertoire with White pieces
| ECO | Opening | Games |
| C91 | Ruy Lopez, closed, 9.d4 | 19 games |
| B42 | Sicilian, Kan, 5.Bd3 | 18 games |
| B93 | Sicilian, Najdorf, 6.f4 | 17 games |
| B07 | Pirc defence | 16 games |
Yrjo A Rantanen Repertoire with Black pieces
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 15 games |
| D27 | Queen's Gambit Accepted, classical, 6...a6 | 14 games |
| B38 | Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3 | 13 games |
| B76 | Sicilian, dragon, Yugoslav attack, 7...O-O | 13 games |


