411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Bc4/2...c6
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
2...c6 — Bishop's Opening: Philidor Counterattack
2...c6 is an unusual counterattack idea, preparing to challenge White's center with 3...d5. (similar to the Ponziani Opening)
Theory Table:
e4 e5 2. Bc4 c6