Caissa Codex
C90

Ruy Lopez: Closed 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: Closed

Play Black's moves of the line from memory — 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O — and the trainer plays White's replies; "Play the other side" turns it around.

"Drill all" adds the 30 named lines that continue it, such as Ruy Lopez: Closed, Chigorin Defense, Ruy Lopez: Closed, Yates Variation, Ruy Lopez: Closed, Bogoljubow Variation, Ruy Lopez: Closed, Breyer Defense, Ruy Lopez: Closed, Flohr System, Ruy Lopez: Closed, Breyer, Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid, Ruy Lopez: Closed, Smyslov Defense.

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

https://chesscodex.org/train/ruy-lopez-closed-4