ECO A53
7 named openings and variations are classified as A53. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Old Indian Defense: Aged Gibbon GambitA531. d4 Nf6 2. c4 d6 3. g4
- Old Indian Defense: Czech Variation, with Nc3A531. d4 Nf6 2. c4 d6 3. Nc3 c6
- Old Indian Defense: Czech Variation, with Nf3A531. d4 Nf6 2. c4 d6 3. Nf3 c6
- Old Indian Defense: Janowski VariationA531. d4 Nf6 2. c4 d6 3. Nc3 Bf5
- Old Indian Defense: Janowski Variation, Fianchetto VariationA531. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. g3
- Old Indian Defense: Janowski Variation, Grinberg GambitA531. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. e4
- Old Indian Defense: Janowski Variation, Main LineA531. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. f3