পেত্রভ ডিফেন্স

A defense beginning 1.e4 e5 2.Nf3 Nf6, where Black counterattacks e4 instead of directly protecting e5.

A main Petrov line in which the e-pawns are exchanged and White occupies the center with d4 to challenge the knight on e4.

A system in which White challenges the center with a pawn before capturing Black’s advanced central pawn.

A knight sacrifice that exposes the black king and seeks immediate activity in the center.

A gambit in which Black offers a pawn to bring the pieces out quickly and create threats against the white king.