Caissa Codex
B96

Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line 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 Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line

Play White's moves of the line from memory — 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Qe2 — and the trainer plays Black'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: Najdorf Variation, Polugaevsky Variation, Simagin Line page, or pick another opening in the opening trainer.

https://chesscodex.org/train/sicilian-defense-najdorf-variation-polugaevsky-variation-simagin-line