Caissa Codex
A00

Anderssen's Opening trainer

Back to the opening, all openings to practise or my repertoire

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

Practise the Anderssen's Opening

Anderssen's Opening is 1.a3, an irregular first move classified as A00. Play White's moves of the line from memory — 1. a3 — and the trainer plays Black's replies; "Play the other side" turns it around.

"Drill all" adds the 4 named lines that continue it, such as Van Geet Opening: Battambang Variation, Anderssen's Opening: Polish Gambit, Formation: Hippopotamus Attack, Formation: Shy Attack.

Read about the line, its statistics on Lichess and Stockfish's evaluation on the Anderssen's Opening page, or pick another opening in the opening trainer.

https://chesscodex.org/train/anderssens-opening