C49White5 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 7. Bg5 Ne7 8. Nh4
Also known as Four Knights: Symmetrical, Pillsbury Variation, Four Knights Game: Spanish Variation, Symmetrical Variation, 6. d3 d6 7. Bg5 Ne7.