ECO A47: Pseudo Queen's Indian Defense, Marienbad System & more
ECO A47 is part of volume A, Flank Openings.
The Lichess chess-openings dataset files 5 named lines under it, from 3 different openings.
The shortest is Pseudo Queen's Indian Defense:
1. d4 Nf6 2. Nf3 b6.
That position has come up in 884,935 Lichess games between players rated 1600 to 2500: White won 48.5%, 6.2% were drawn and Black won 45.3%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| Pseudo Queen's Indian Defense | 1. d4 Nf6 2. Nf3 b6 |
885K | 2 moves |
| Indian Defense: Schnepper Gambit | 1. d4 Nf6 2. Nf3 b6 3. c3 e5 |
16 | 3 moves |
| Marienbad System | 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 |
20K | 4 moves |
| Marienbad System: Berg Variation | 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4 |
2,198 | 6 moves |
| Pseudo Queen's Indian Defense | 1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. Bd3 e6 5. Nbd2 c5 6. b3 Be7 |
5,655 | 6 moves |