25. april 2024
| Eco | Name | First moves | # games |
|---|---|---|---|
| D02 | Queen's Pawn Game | 1 d4 d5 2 Sf3 | 6 |
| B22 | Sicilian, Alapin | 1 e4 c5 2 c3 | 2 |
| A00 | Uncommon Opening | 1 a3, b3, d3, g4, etc. | 1 |
| A13 | English | 1 c4 e6 | 1 |
| A30 | English, Symmetrical | 1 c4 c5 | 1 |
| A36 | English | 1 c4 c5 2 Sc3 Sc6 3 g3 | 1 |
| A48 | King's Indian | 1 d4 Sf6 2 Sf3 g6 | 1 |
| A85 | Dutch, with c4 & Nc3 | 1 d4 f5 2 c4 Sf6 3 Sc3 | 1 |
| B18 | Caro-Kann, Classical | 1 e4 c6 2 d4 d5 3 Sc3 dxe4 4 Sxe4 Lf5 | 1 |
| B24 | Sicilian, Closed | 1 e4 c5 2 Sc3 Sc6 3 g3 | 1 |
| B37 | Sicilian, Accelerated Fianchetto | 1 e4 c5 2 Sf3 Sc6 3 d4 cxd4 4 Sxd4 g6 5 c4 Lg7 | 1 |
| B90 | Sicilian, Najdorf | 1 e4 c5 2 Sf3 d6 3 d4 cxd4 4 Sxd4 Sf6 5 Sc3 a6 | 1 |
| B92 | Sicilian, Najdorf, Opocensky Variation | 1 e4 c5 2 Sf3 d6 3 d4 cxd4 4 Sxd4 Sf6 5 Sc3 a6 6 Le2 | 1 |
| B94 | Sicilian, Najdorf | 1 e4 c5 2 Sf3 d6 3 d4 cxd4 4 Sxd4 Sf6 5 Sc3 a6 6 Lg5 | 1 |
| C00 | French Defense | 1 e4 e6 | 1 |
| C02 | French, Advance | 1 e4 e6 2 d4 d5 3 e5 | 1 |
| C11 | French | 1 e4 e6 2 d4 d5 3 Sc3 Sf6 | 1 |
| C34 | King's Gambit Accepted | 1 e4 e5 2 f4 exf4 3 Sf3 | 1 |
| C41 | Philidor Defense | 1 e4 e5 2 Sf3 d6 | 1 |
| C44 | King's Pawn Game | 1 e4 e5 2 Sf3 Sc6 | 1 |
| C56 | Two Knights | 1 e4 e5 2 Sf3 Sc6 3 Lc4 Sf6 4 d4 exd4 5 O-O Sxe4 | 1 |
| C62 | Ruy Lopez, Old Steinitz Defense | 1 e4 e5 2 Sf3 Sc6 3 Lb5 d6 | 1 |
| C68 | Ruy Lopez, Exchange | 1 e4 e5 2 Sf3 Sc6 3 Lb5 a6 4 Lxc6 | 1 |
| C78 | Ruy Lopez | 1 e4 e5 2 Sf3 Sc6 3 Lb5 a6 4 La4 Sf6 5 O-O | 1 |
| D05 | Queen's Pawn Game | 1 d4 d5 2 Sf3 Sf6 3 e3 e6 | 1 |
| D07 | Queen's Gambit Declined, Chigorin Defense | 1 d4 d5 2 c4 Sc6 | 1 |
| D17 | Queen's Gambit Declined Slav | 1 d4 d5 2 c4 c6 3 Sf3 Sf6 4 Sc3 dxc4 5 a4 Lf5 | 1 |
| D55 | Queen's Gambit Declined | 1 d4 d5 2 c4 e6 3 Sc3 Sf6 4 Lg5 Le7 5 e3 O-O 6 Sf3 | 1 |
| D70 | Neo-Grunfeld Defense | 1 d4 Sf6 2 c4 g6 3 f3 d5 | 1 |
| E24 | Nimzo-Indian, Samisch | 1 d4 Sf6 2 c4 e6 3 Sc3 Lb4 4 a3 Lxc3+ 5 bxc3 | 1 |
| E30 | Nimzo-Indian, Leningrad | 1 d4 Sf6 2 c4 e6 3 Sc3 Lb4 4 Lg5 | 1 |
| E81 | King's Indian, Samisch | 1 d4 Sf6 2 c4 g6 3 Sc3 Lg7 4 e4 d6 5 f3 O-O | 1 |
| E90 | King's Indian | 1 d4 Sf6 2 c4 g6 3 Sc3 Lg7 4 e4 d6 5 Sf3 | 1 |