a strongest gambit in petroff defense for black

dear chess players I am introducing. strongest variations. of petroff defence . petroff is not played by many players because they. don't want to. take. risk but. after. reading this article. you. would surely like petroff defence 1.e4. .e5. 2. Nf3 .Nf6 this. is the petroff / Russian defence now for white the options are like this N×e5 capturing Nc3. defending d4. counter attacking Bc4 defending Let's start with first one N×e5 . now the options for black are as follows 3.N×e4 not so good 3. d6 affordable. 3.Nc6 strongest. gambit. 3. Qe7. perfect. you guys are familiar with the first three options of black. but the forth one is. special. 4 Qe7 if white played d4. then d6. knight has to leave. and Q×e4 + Qe2 and. Be7. then we are going to castle and control the open file by rook. Let's go for second option of white if he played d4. then just. d5 similar to. centre counter game and. the. third one Bc4 developing. we are not going to take the pawn but. c6. N×e5 and. d5. this is the gambit in petroff defence. and the fourth option of white Nc3. defending. Nc6 is common move. but. for. petroff gambit we play Bb4 then. if N×e5 Qe7. then if. d4. .d6 Nf3 to to d3. and. N× e4! double attack on. whites knight and future discovered attack on. queen so did I liked these variations please leave me comments to know your opinions