ECO A13

English Opening: Agincourt Defense, Catalan Defense Accepted

English Opening: Agincourt Defense, Catalan Defense Accepted is a chess opening classified under ECO A13. Its defining line here is 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4.

English Opening: Agincourt Defense, Catalan Defense Accepted — board position

1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4

The diagram shows the position after 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.

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