1. e4 e5 2. Nf3 Nf6
The Petrov Defense (1. e4 e5 2. Nf3 Nf6), also known as the Russian Game, is a symmetrical response where Black counter-attacks the e4-pawn instead of defending e5. It leads to solid, often simplified positions that are notoriously hard for White to crack.
Position after 1. e4 e5 2. Nf3 Nf6
Named after Alexander Petrov, a 19th-century Russian master, this defense became a world championship staple through the games of Kramnik and Caruana, who used its solid nature to defuse aggressive opponents.