Caissa Codex
A10

English 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 English Opening

The English Opening (1.c4) is a flexible first move in which White controls d5 from the side instead of occupying the centre with a pawn. Play White's moves of the line from memory — 1. c4 — and the trainer plays Black's replies; "Play the other side" turns it around.

"Drill all" adds the 180 named lines that continue it, such as English Opening: King's English Variation, English Opening: Anglo-Indian Defense, English Opening: King's English Variation, Reversed Sicilian, English Opening: Anglo-Indian Defense, Queen's Knight Variation, English Opening: Symmetrical Variation, English Opening: Agincourt Defense, English Opening: King's English Variation, Two Knights Variation, English Opening: Symmetrical Variation, Normal Variation.

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

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