Caissa Codex
C74

Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation 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: Morphy Defense, Modern Steinitz Defense, Siesta Variation

Play Black's moves of the line from memory — 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 — and the trainer plays White's replies; "Play the other side" turns it around.

"Drill all" adds the 1 named line that continue it, such as Ruy Lopez: Morphy Defense, Modern Steinitz Defense.

Read about the line, its statistics on Lichess and Stockfish's evaluation on the Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/ruy-lopez-morphy-defense-modern-steinitz-defense-siesta-variation