C69Black2 book lines continue
Exchange Variation, King's Bishop Variation
Ruy Lopez1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6
Also known as Spanish: Exchange, 5.O-O Bd6, Spanish Game, Exchange Variation, King's Bishop Variation, Ruy Lopez Exchange.