English Opening: Symmetrical Variation, Three Knights Variation

1.c4 c5 2.Nc3 Nf6 3.Nf3

ECO A34

The English Opening: Symmetrical Variation, Three Knights Variation is a chess opening line in the English Opening complex, reached after 1.c4 c5 2.Nc3 Nf6 3.Nf3.

It is catalogued under code A34 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nf3 is chosen by White on move 3.

Do you want to learn openings?

Start with a GM-authored repertoire you study move by move, then practice against a human-like AI opponent:

• Catalan Opening
• King's Indian Defense with ...e5

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