Sodium Attack

1.Na3

ECO A00

The Sodium Attack is a chess opening reached after 1.Na3, catalogued under code A00 in the Encyclopaedia of Chess Openings (ECO).

The defining move Na3 is chosen by White on move 1.

3 named continuations branch from this position, including the Celadon Variation and the Chenoboskion Variation.

Named variations

• Sodium Attack: Celadon Variation — ECO A00
• Sodium Attack: Chenoboskion Variation — ECO A00
• Sodium Attack: Durkin Gambit — ECO A00

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.