ECO C43
Petrov's Defense
1. e4 e5 2. Nf3 Nf6 3. d4Statistics for this opening are still being collected — check back soon.
About this opening
Petrov's Defense (ECO C43) opens with the moves 1. e4 e5 2. Nf3 Nf6 3. d4. It belongs to the Open Game family.