Ruy Lopez

Play as White • Repeat until it's automatic

Cozio Defence

Black plays the rare 3...Nge7, an offbeat but principled defence that defends the c6 knight and prepares ...g6 with a King's Indian-style fianchetto. Named after the 18th-century Italian theorist Carlo Cozio, this surprise weapon avoids all the heavy mainline theory and steers play into unfamiliar territory.

LinesPractice Mode

You (White)

Your move - play White's next move

ProgressMove 1 of 6

Move Sequence

1.e4e5

2.Nf3Nc6

3.Bb5Nge7

4.Nc3g6

5.d4exd4

6.Nxd4Bg7

Current lineCozio Defence

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Reps

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Streak

0/3

Learned

Earn a tick by completing the line without a mistake. 3 ticks = learned.