Caissa Codex
B27

Sicilian Defense: Hyperaccelerated Dragon trainer

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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 Sicilian Defense: Hyperaccelerated Dragon

The Hyperaccelerated Dragon (1.e4 c5 2.Nf3 g6) is a Sicilian Defense in which Black fianchettoes the king's bishop at once, before committing the knight to c6 or the pawn to d6. Play Black's moves of the line from memory — 1. e4 c5 2. Nf3 g6 — and the trainer plays White's replies; "Play the other side" turns it around.

"Drill all" adds the 14 named lines that continue it, such as Sicilian Defense: Hyperaccelerated Pterodactyl, Pterodactyl Defense: Western, Rhamphorhynchus, Pterodactyl Defense: Sicilian, Rhamphorhynchus, Pterodactyl Defense: Sicilian, Pteranodon, Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation, Modern Defense: Pterodactyl Variation, Pterodactyl Defense: Western, Pterodactyl, Pterodactyl Defense: Sicilian, Anhanguera.

Read about the line, its statistics on Lichess and Stockfish's evaluation on the Sicilian Defense: Hyperaccelerated Dragon page, or pick another opening in the opening trainer.

https://chesscodex.org/train/sicilian-defense-hyperaccelerated-dragon