Caissa Codex
C83

Ruy Lopez: Open, Classical Defense 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 Ruy Lopez: Open, Classical Defense

Play Black's moves of the line from memory — 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 — and the trainer plays White's replies; "Play the other side" turns it around.

"Drill all" adds the 3 named lines that continue it, such as Ruy Lopez: Open, Malkin Variation, Ruy Lopez: Open, Breslau Variation, Ruy Lopez: Open, Tarrasch Trap.

Read about the line, its statistics on Lichess and Stockfish's evaluation on the Ruy Lopez: Open, Classical Defense page, or pick another opening in the opening trainer.

https://chesscodex.org/train/ruy-lopez-open-classical-defense