Caissa Codex
B06

Pterodactyl Defense: Eastern, Pterodactyl 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 Pterodactyl Defense: Eastern, Pterodactyl

Play Black's moves of the line from memory — 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 — 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 Pterodactyl Defense: Eastern, Pterodactyl page, or pick another opening in the opening trainer.

https://chesscodex.org/train/pterodactyl-defense-eastern-pterodactyl