Caissa Codex
B03

Alekhine Defense: Four Pawns Attack, Cambridge Gambit 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 Alekhine Defense: Four Pawns Attack, Cambridge Gambit

Play Black's moves of the line from memory — 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5 — 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 Alekhine Defense: Four Pawns Attack, Cambridge Gambit page, or pick another opening in the opening trainer.

https://chesscodex.org/train/alekhine-defense-four-pawns-attack-cambridge-gambit