ECO A50: Indian Defense, Mexican Defense & more
ECO A50 is part of volume A, Flank Openings.
The Lichess chess-openings dataset files 7 named lines under it, from 4 different openings.
The shortest is Indian Defense: Normal Variation:
1. d4 Nf6 2. c4.
That position has come up in 85,459,347 Lichess games between players rated 1600 to 2500: White won 48.1%, 5.5% were drawn and Black won 46.4%.
| Opening | Moves | Games | Length |
|---|---|---|---|
| Indian Defense: Normal Variation | 1. d4 Nf6 2. c4 |
85.5M | 2 moves |
| Indian Defense: Medusa Gambit | 1. d4 Nf6 2. c4 g5 |
25K | 2 moves |
| Indian Defense: Pyrenees Gambit | 1. d4 Nf6 2. c4 b5 |
58K | 2 moves |
| Mexican Defense | 1. d4 Nf6 2. c4 Nc6 |
664K | 2 moves |
| Queen's Indian Accelerated | 1. d4 Nf6 2. c4 b6 |
733K | 2 moves |
| Slav Indian | 1. d4 Nf6 2. c4 c6 |
1.8M | 2 moves |
| Mexican Defense: Horsefly Gambit | 1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4 |
11K | 4 moves |