Home › Openings › Ruy Lopez › Ruy Lopez: Cozio Defense Ruy Lopez: Cozio Defense, Paulsen Variation ECO C60 · 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. Nc3 g6 Related variationsRuy Lopez: Cozio Defense, Tartakower Gambit Practice this opening · Play against the computer