22. december 2024
| Eco | Name | First moves | # games |
|---|---|---|---|
| B06 | Robatsch | 1 e4 g6 | 3 |
| A00 | Uncommon Opening | 1 a3, b3, d3, g4, etc. | 2 |
| A85 | Dutch, with c4 & Nc3 | 1 d4 f5 2 c4 Sf6 3 Sc3 | 2 |
| C41 | Philidor Defense | 1 e4 e5 2 Sf3 d6 | 2 |
| A07 | King's Indian Attack | 1 Sf3 d5 2 g3 | 1 |
| A28 | English | 1 c4 e5 2 Sc3 Sc6 3 Sf3 Sf6 | 1 |
| A30 | English, Symmetrical | 1 c4 c5 | 1 |
| A92 | Dutch | 1 d4 f5 2 c4 Sf6 3 g3 e6 4 Lg2 Le7 5 Sf3 O-O | 1 |
| B03 | Alekhine's Defense | 1 e4 Sf6 2 e5 Sd5 3 d4 | 1 |
| B10 | Caro-Kann | 1 e4 c6 | 1 |
| B11 | Caro-Kann, Two Knights, 3...Bg4 | 1 e4 c6 2 Sc3 d5 3 Sf3 Lg4 | 1 |
| B15 | Caro-Kann | 1 e4 c6 2 d4 d5 3 Sc3 | 1 |
| B20 | Sicilian | 1 e4 c5 | 1 |
| B21 | Sicilian, 2.f4 and 2.d4 | 1 e4 c5 2 f4 | 1 |
| B22 | Sicilian, Alapin | 1 e4 c5 2 c3 | 1 |
| B28 | Sicilian, O'Kelly Variation | 1 e4 c5 2 Sf3 a6 | 1 |
| C02 | French, Advance | 1 e4 e6 2 d4 d5 3 e5 | 1 |
| C21 | Center Game | 1 e4 e5 2 d4 exd4 | 1 |
| C25 | Vienna | 1 e4 e5 2 Sc3 | 1 |
| C27 | Vienna Game | 1 e4 e5 2 Sc3 Sf6 3 Lc4 Sxe4 | 1 |
| C45 | Scotch Game | 1 e4 e5 2 Sf3 Sc6 3 d4 exd4 4 Sxd4 | 1 |
| C65 | Ruy Lopez, Berlin Defense | 1 e4 e5 2 Sf3 Sc6 3 Lb5 Sf6 | 1 |
| D10 | Queen's Gambit Declined Slav | 1 d4 d5 2 c4 c6 | 1 |
| D15 | Queen's Gambit Declined Slav | 1 d4 d5 2 c4 c6 3 Sf3 Sf6 4 Sc3 | 1 |
| D37 | Queen's Gambit Declined | 1 d4 d5 2 c4 e6 3 Sc3 Sf6 4 Sf3 | 1 |
| D46 | Queen's Gambit Declined Semi-Slav | 1 d4 d5 2 c4 e6 3 Sc3 Sf6 4 Sf3 c6 5 e3 Sbd7 6 Ld3 | 1 |
| D78 | Neo-Grunfeld, 6.O-O c6 | 1 d4 Sf6 2 c4 g6 3 g3 d5 4 Lg2 Lg7 5 Sf3 O-O 6 O-O c6 | 1 |
| E04 | Catalan, Open, 5.Nf3 | 1 d4 Sf6 2 c4 e6 3 g3 d5 4 Lg2 dxc4 5 Sf3 | 1 |
| E20 | Nimzo-Indian | 1 d4 Sf6 2 c4 e6 3 Sc3 Lb4 | 1 |
| E61 | King's Indian | 1 d4 Sf6 2 c4 g6 3 Sc3 | 1 |
| E62 | King's Indian, Fianchetto | 1 d4 Sf6 2 c4 g6 3 Sc3 Lg7 4 Sf3 d6 5 g3 | 1 |
| E70 | King's Indian | 1 d4 Sf6 2 c4 g6 3 Sc3 Lg7 4 e4 | 1 |
| E91 | King's Indian | 1 d4 Sf6 2 c4 g6 3 Sc3 Lg7 4 e4 d6 5 Sf3 O-O 6 Le2 | 1 |