Caissa Codex
A04

Zukertort Opening: The Walrus 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 Zukertort Opening: The Walrus

Play Black's moves of the line from memory — 1. Nf3 e5 2. Nxe5 Nc6 3. Nxc6 dxc6 — and the trainer plays White's replies; "Play the other side" turns it around.

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

https://chesscodex.org/train/zukertort-opening-the-walrus