ECO Codes
The ECO Codes is a classification system for the chess openings moves. Below is a list of chess openings organized by the Encyclopaedia of Chess Openings (ECO) code. The openings are divided in five volumes labeled from "A" through "E".
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1. d4 d5 2. Nf3 Nf6 3. e3
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1. d4 d5 2. Nf3 Nf6 3. e3 e6
- 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. b3
- 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3
- 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. b3
- 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3