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A00Opening

Sodium Attack

1. Na3

a8b7c6d5e4f3g2h1

Black to move

Legal moves
20
Games in the next 4 moves
198,572
Different positions among them
72,396
Named lines from here
3

See it on the mapOn the opening map

The name is a joke: Na is the chemical symbol for sodium, and the move is written 1. Na3.

It is reached after a single move: 1. Na3.

Black is to move and has 20 legal moves. Over the next four moves — two for each side — the game can branch into 198,572 different games. Those games reach 72,396 different positions: most positions can be reached in more than one way, 2.7 on average.

The Lichess opening list names 3 further lines after this position, such as Chenoboskion Variation (1... g6 2. g4) and Durkin Gambit (1... e5 2. Nc4 Nc6 3. e4 f5).

Map of every game of the next four moves after the Sodium Attack
Every game of the next four moves from this position, as the map draws it. Each ring is one more move; the outer ring holds all 198,572 games.

Move by move

  1. 1. Na3Sodium Attack

Named lines from here

Related openings

FEN

rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq - 1 1