English Opening: Agincourt Defense, Keres Defense

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O c5 6.cxd5 Nxd5 7.Nc3 Nc6

ECO A14

The English Opening: Agincourt Defense, Keres Defense is a chess opening line in the English Opening complex, reached after 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O c5 6.cxd5 Nxd5 7.Nc3 Nc6.

It is catalogued under code A14 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nc6 is chosen by Black on move 7.

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.