C49Black23 book lines continue
Spanish Variation, Symmetrical Variation
Four Knights Game1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6
Also known as Four Knights: Symmetrical Variation, Four Knights Game, Spanish Variation, Symmetrical Variation, 4 Knights.