A34Black17 book lines continue
Symmetrical, 3 Knights, Exchange
English Opening1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5
Also known as English Opening: Symmetrical Variation, Three Knights Variation, English Opening, Symmetrical Variation, Asymmetrical Variation, English.