Petrov Defense Middlegame (1.e4 e5 2.Nf3 Nf6 / 1.e4 e5 2.Nf3 Nf6 3.d4 / 1.e4 e5 2.Nf3 Nf6 3.Bc4) Chess Puzzles

The Petrov Defense middlegame arises from 1.e4 e5 2.Nf3 Nf6, usually after White chooses 3.Nxe5 or maintains tension with 3.d4. Its defining feature is Black’s immediate attack on the e4-pawn, often producing symmetrical central structures where small development and activity differences matter.