Caissa Codex
C79

Ruy Lopez: Steinitz Defense Deferred, Boleslavsky 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: Steinitz Defense Deferred, Boleslavsky Variation

Play White's moves of the line from memory — 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Bxc6+ bxc6 7. d4 Nxe4 8. Re1 f5 9. dxe5 d5 10. Nc3 — 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 Ruy Lopez: Steinitz Defense Deferred, Boleslavsky Variation page, or pick another opening in the opening trainer.

https://chesscodex.org/train/ruy-lopez-steinitz-defense-deferred-boleslavsky-variation