ECO D66: Queen's Gambit Declined: Orthodox Defense
ECO D66 is part of volume D, Closed & Semi-Closed Games.
The Lichess chess-openings dataset files 2 named lines under it.
The shortest is Queen's Gambit Declined: Orthodox Defense, Bd3 Line:
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3.
All of them are lines of the
Queen's Gambit Declined: Orthodox Defense.
That position has come up in 192,718 Lichess games between players rated 1600 to 2500: White won 52.4%, 6.6% were drawn and Black won 41.0%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| Queen's Gambit Declined: Orthodox Defense, Bd3 Line | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 |
193K | 8 moves |
| Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Be7 6. e3 Nbd7 7. Rc1 O-O 8. Bd3 dxc4 9. Bxc4 b5 |
41K | 9 moves |