| Eco | Name | First moves | # games |
|---|
| B21 | Sicilian, 2.f4 and 2.d4 | 1 e4 c5 2 f4 | 3 |
| C72 | Ruy Lopez, Modern Steinitz Defense, 5.O-O | 1 e4 e5 2 Sf3 Sc6 3 Lb5 a6 4 La4 d6 5 O-O | 2 |
| C78 | Ruy Lopez | 1 e4 e5 2 Sf3 Sc6 3 Lb5 a6 4 La4 Sf6 5 O-O | 2 |
| A00 | Uncommon Opening | 1 a3, b3, d3, g4, etc. | 1 |
| A01 | Nimzovich-Larsen Attack | 1 b3 | 1 |
| A10 | English | 1 c4 | 1 |
| A22 | English | 1 c4 e5 2 Sc3 Sf6 | 1 |
| A28 | English | 1 c4 e5 2 Sc3 Sc6 3 Sf3 Sf6 | 1 |
| A85 | Dutch, with c4 & Nc3 | 1 d4 f5 2 c4 Sf6 3 Sc3 | 1 |
| B01 | Scandinavian | 1 e4 d5 | 1 |
| B06 | Robatsch | 1 e4 g6 | 1 |
| B12 | Caro-Kann Defense | 1 e4 c6 2 d4 | 1 |
| B23 | Sicilian, Closed | 1 e4 c5 2 Sc3 | 1 |
| B31 | Sicilian, Rossolimo Variation | 1 e4 c5 2 Sf3 Sc6 3 Lb5 g6 | 1 |
| B50 | Sicilian | 1 e4 c5 2 Sf3 d6 | 1 |
| C04 | French, Tarrasch, Guimard Main line | 1 e4 e6 2 d4 d5 3 Sd2 Sc6 4 Sgf3 Sf6 | 1 |
| C23 | Bishop's Opening | 1 e4 e5 2 Lc4 | 1 |
| C27 | Vienna Game | 1 e4 e5 2 Sc3 Sf6 3 Lc4 Sxe4 | 1 |
| C42 | Petrov Defense | 1 e4 e5 2 Sf3 Sf6 | 1 |
| C44 | King's Pawn Game | 1 e4 e5 2 Sf3 Sc6 | 1 |
| C88 | Ruy Lopez | 1 e4 e5 2 Sf3 Sc6 3 Lb5 a6 4 La4 Sf6 5 O-O Le7 6 Te1 b5 7 Lb3 | 1 |
| D02 | Queen's Pawn Game | 1 d4 d5 2 Sf3 | 1 |
| D06 | Queen's Gambit Declined | 1 d4 d5 2 c4 | 1 |
| D07 | Queen's Gambit Declined, Chigorin Defense | 1 d4 d5 2 c4 Sc6 | 1 |
| D13 | Queen's Gambit Declined Slav, Exchange Variation | 1 d4 d5 2 c4 c6 3 Sf3 Sf6 4 cxd5 cxd5 | 1 |
| D30 | Queen's Gambit Declined | 1 d4 d5 2 c4 e6 | 1 |
| D43 | Queen's Gambit Declined Semi-Slav | 1 d4 d5 2 c4 e6 3 Sc3 Sf6 4 Sf3 c6 | 1 |
