ECO D31: Semi-Slav Defense & Queen's Gambit Declined
ECO D31 is part of volume D, Closed & Semi-Closed Games.
The Lichess chess-openings dataset files 20 named lines under it, from 2 different openings.
The shortest is Queen's Gambit Declined: Queen's Knight Variation:
1. d4 d5 2. c4 e6 3. Nc3.
That position has come up in 31,026,954 Lichess games between players rated 1600 to 2500: White won 51.1%, 5.5% were drawn and Black won 43.5%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| Queen's Gambit Declined: Queen's Knight Variation | 1. d4 d5 2. c4 e6 3. Nc3 |
31M | 3 moves |
| Queen's Gambit Declined: Alapin Variation | 1. d4 e6 2. c4 b6 3. Nc3 d5 |
137K | 3 moves |
| Queen's Gambit Declined: Charousek Variation | 1. d4 d5 2. c4 e6 3. Nc3 Be7 |
570K | 3 moves |
| Queen's Gambit Declined: Janowski Variation | 1. d4 d5 2. c4 e6 3. Nc3 a6 |
598K | 3 moves |
| Semi-Slav Defense: Accelerated Move Order | 1. d4 d5 2. c4 e6 3. Nc3 c6 |
8.6M | 3 moves |
| Semi-Slav Defense: Marshall Gambit | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 |
1.1M | 4 moves |
| Semi-Slav Defense: Noteboom Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 |
936K | 4 moves |
| Queen's Gambit Declined: Charousek Variation, Miladinovic Gambit | 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. e4 dxe4 5. f3 |
1,401 | 5 moves |
| Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g4 |
9,658 | 5 moves |
| Semi-Slav Defense: Gunderam Gambit | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3 |
19K | 5 moves |
| Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. g3 |
36K | 5 moves |
| Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 |
58K | 5 moves |
| Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f6 |
14K | 5 moves |
| Semi-Slav Defense: Marshall Gambit, Forgotten Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 |
56K | 6 moves |
| Semi-Slav Defense: Marshall Gambit, Main Line | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 |
73K | 6 moves |
| Queen's Gambit Declined: Semi-Slav, Abrahams Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5 |
39K | 7 moves |
| Queen's Gambit Declined: Semi-Slav, Junge Variation | 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 Qb6 |
4,393 | 7 moves |
| Queen's Gambit Declined: Semi-Slav, Koomen Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 Qe7 |
884 | 7 moves |
| Semi-Slav Defense: Noteboom Variation, Abrahams Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 Bxc3+ 7. bxc3 b5 8. axb5 cxb5 |
21K | 8 moves |
| Semi-Slav Defense: Marshall Gambit, Tolush Variation | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 c5 9. Bxc5 Qxg2 |
1,171 | 9 moves |