Caissa Codex
C60

Ruy Lopez: Cozio 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: Cozio Defense

The Cozio Defense is 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7, an old-fashioned and uncommon third move for Black in the Ruy Lopez. Play Black's moves of the line from memory — 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 — 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: Cozio Defense, Paulsen Variation.

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

https://chesscodex.org/train/ruy-lopez-cozio-defense