C91White11 book lines continue
Closed, Yates Variation
Ruy Lopez1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4
Also known as Spanish: Closed, 9.d4, Ruy Lopez: Closed Variations, Yates Variation, Spanish Game, Closed Variations.