Caissa Codex
A10

English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System 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: King's English Variation, Botvinnik System, Prickly Pawn Pass System

Play Black's moves of the line from memory — 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O c6 8. d3 a6 — 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 English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System page, or pick another opening in the opening trainer.

https://chesscodex.org/train/english-opening-kings-english-variation-botvinnik-system-prickly-pawn-pass-system