Caissa Codex
A45

Trompowsky Attack: Classical Defense, Big Center Variation 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 Trompowsky Attack: Classical Defense, Big Center Variation

Play White's moves of the line from memory — 1. d4 Nf6 2. Bg5 e6 3. e4 — and the trainer plays Black's replies; "Play the other side" turns it around.

Read about the line, its statistics on Lichess and Stockfish's evaluation on the Trompowsky Attack: Classical Defense, Big Center Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/trompowsky-attack-classical-defense-big-center-variation