English Opening: Agincourt Defense, Tarrasch Defense

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 c5 5.b3 Nc6 6.O-O Be7

ECO A13

The English Opening: Agincourt Defense, Tarrasch Defense is a chess opening line in the English Opening complex, reached after 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 c5 5.b3 Nc6 6.O-O Be7.

It is catalogued under code A13 in the Encyclopaedia of Chess Openings (ECO).

The defining move Be7 is chosen by Black on move 6.

Study this line with a grandmaster

This position is covered in the Reti Opening course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.