Caissa Codex
B22

Sicilian Defense: Delayed Alapin Variation 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: Delayed Alapin Variation

Play Black's moves of the line from memory — 1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 — 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 Sicilian Defense: Delayed Alapin Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/sicilian-defense-delayed-alapin-variation