Main lineA00
1. Na3
No pawn stands on d4, e4, d5 or e5 - this line is played with the centre squares empty.
A00
Sodium Attack
4 named lines in this family, ECO A00. Every one of them opens 1. Na3, so that move's note is written once, just below, instead of once per line. Under each line you get its moves and the sentences it adds that this page has not already printed. A line's own page carries up to its first 4 per-move notes in full.
The moves every line here plays
1. Na3
- 1. Na3 Develops the knight to a3. It backs up the pawn on c2. Theory calls this the Sodium Attack.
Chenoboskion VariationA00
1. Na3 g6 2. g4
- 1... g6 Prepares the fianchetto: the bishop will take the long diagonal via g7.
- 2. g4 Opens the f1-h3 diagonal for the bishop. Theory calls this the Chenoboskion Variation.
Durkin GambitA00
1. Na3 e5 2. Nc4 Nc6 3. e4 f5
In the centre, White holds e4 while Black holds e5.
- 1... e5 Stakes a claim in the centre, controlling d4, and frees the bishop and queen.
- 2. Nc4 Improves the knight: from c4 it bears on e5.
- 2... Nc6 Develops the knight to c6, eyeing d4 and e5. It also props up the e5 pawn.
Celadon VariationA00
1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1
The structure hands White the half-open b-file - rook pressure down it is a standing plan.
- 2. d3 Supports the centre, adding control of e4.
- 2... Bxa3 Takes the knight on a3.
Walk these lines on a board
An account opens every move's note in this family, the plan behind each line, and a trainer that plays the line back at you. It is free.