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Example Searches: Queens gambit, B33, d4 d5

> ECO Openings Starting With This Line: 2

> Continuation: a3 (1)

Nimzo-Indian diagram

Nimzo-Indian (E48)

4.e3 O-O, 5.Bd3 d5

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5

Nimzo-Indian diagram

Nimzo-Indian (E49)

4.e3, Botvinnik system

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3