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 Nf6 2. c4 e6 3. g3 d5 4. Bg2
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1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+
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1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2
- 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4
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1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3
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1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7
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1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3