The Celadon Variation is a variation of the Sodium Attack, catalogued as ECO A00. The line runs 1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1, reaching the position shown below after 9 half-moves.
Black holds the centre with pawns on d5 and e5. Development is level at one minor pieces each. It is Black to move after five moves. White has doubled pawns on the a-file; White’s a-file pawn is isolated; White has the bishop pair.
On the Sodium Attack generally: ECO A00. A chess opening with 4 known variations.
You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.
The Celadon Variation goes 1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1. It is a variation of the Sodium Attack and is catalogued as ECO A00.
The Celadon Variation is ECO A00. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sodium Attack.
Stockfish evaluates the position after 1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1 at -1.01 at depth 18, which is a small but real edge for Black. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Black holds the centre with pawns on d5 and e5. Development is level at one minor pieces each. It is Black to move. White has doubled pawns on the a-file; White’s a-file pawn is isolated; White has the bishop pair.