| Eco | Name | First moves | # games |
|---|
| A00 | Uncommon Opening | 1 a3, b3, d3, g4, etc. | 7 |
| B22 | Sicilian, Alapin | 1 e4 c5 2 c3 | 5 |
| B21 | Sicilian, 2.f4 and 2.d4 | 1 e4 c5 2 f4 | 3 |
| C42 | Petrov Defense | 1 e4 e5 2 Sf3 Sf6 | 2 |
| A10 | English | 1 c4 | 1 |
| A14 | English | 1 c4 e6 2 Sf3 d5 3 g3 Sf6 4 Lg2 Le7 5 O-O | 1 |
| A30 | English, Symmetrical | 1 c4 c5 | 1 |
| A31 | English, Symmetrical, Benoni Formation | 1 c4 c5 2 Sf3 Sf6 3 d4 | 1 |
| A81 | Dutch | 1 d4 f5 2 g3 | 1 |
| B07 | Pirc | 1 e4 d6 2 d4 Sf6 | 1 |
| B12 | Caro-Kann Defense | 1 e4 c6 2 d4 | 1 |
| B13 | Caro-Kann, Exchange | 1 e4 c6 2 d4 d5 3 exd5 cxd5 | 1 |
| B20 | Sicilian | 1 e4 c5 | 1 |
| B28 | Sicilian, O'Kelly Variation | 1 e4 c5 2 Sf3 a6 | 1 |
| B30 | Sicilian | 1 e4 c5 2 Sf3 Sc6 | 1 |
| B38 | Sicilian, Accelerated Fianchetto, Maroczy Bind, 6.Be3 | 1 e4 c5 2 Sf3 Sc6 3 d4 cxd4 4 Sxd4 g6 5 c4 Lg7 6 Le3 | 1 |
| B50 | Sicilian | 1 e4 c5 2 Sf3 d6 | 1 |
| B84 | Sicilian, Scheveningen | 1 e4 c5 2 Sf3 d6 3 d4 cxd4 4 Sxd4 Sf6 5 Sc3 e6 6 Le2 a6 | 1 |
| C24 | Bishop's Opening | 1 e4 e5 2 Lc4 Sf6 | 1 |
| C26 | Vienna | 1 e4 e5 2 Sc3 Sf6 | 1 |
| C31 | King's Gambit Declined, Falkbeer Counter Gambit | 1 e4 e5 2 f4 d5 | 1 |
| C45 | Scotch Game | 1 e4 e5 2 Sf3 Sc6 3 d4 exd4 4 Sxd4 | 1 |
| C68 | Ruy Lopez, Exchange | 1 e4 e5 2 Sf3 Sc6 3 Lb5 a6 4 Lxc6 | 1 |
| D00 | Queen's Pawn Game | 1 d4 d5 | 1 |
| D11 | Queen's Gambit Declined Slav | 1 d4 d5 2 c4 c6 3 Sf3 | 1 |
| D12 | Queen's Gambit Declined Slav | 1 d4 d5 2 c4 c6 3 Sf3 Sf6 4 e3 Lf5 | 1 |
| D34 | Queen's Gambit Declined, Tarrasch | 1 d4 d5 2 c4 e6 3 Sc3 c5 4 cxd5 exd5 5 Sf3 Sc6 6 g3 Sf6 7 Lg2 Le7 | 1 |
| D51 | Queen's Gambit Declined | 1 d4 d5 2 c4 e6 3 Sc3 Sf6 4 Lg5 Sbd7 | 1 |
| D61 | Queen's Gambit Declined, Orthodox, Rubinstein Attack | 1 d4 d5 2 c4 e6 3 Sc3 Sf6 4 Lg5 Le7 5 e3 O-O 6 Sf3 Sbd7 7 Dc2 | 1 |
| D94 | Grunfeld | 1 d4 Sf6 2 c4 g6 3 Sc3 d5 4 Sf3 Lg7 5 e3 | 1 |
| E14 | Queen's Indian | 1 d4 Sf6 2 c4 e6 3 Sf3 b6 4 e3 | 1 |
| E38 | Nimzo-Indian, Classical, 4...c5 | 1 d4 Sf6 2 c4 e6 3 Sc3 Lb4 4 Dc2 c5 | 1 |
| E63 | King's Indian, Fianchetto, Panno Variation | 1 d4 Sf6 2 c4 g6 3 Sc3 Lg7 4 Sf3 d6 5 g3 O-O 6 Lg2 Sc6 7 O-O a6 | 1 |
