ECO volume E: Indian defenses

ECO E46

3 named openings and variations are classified as E46. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.

Nimzo-Indian Defense: Normal VariationE461. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O
Nimzo-Indian Defense: Reshevsky VariationE461. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2
Nimzo-Indian Defense: Simagin VariationE461. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Bd6