I was recently trying to find some gambit lines against the Petroff and I stumbled across the Boden-Kieseritzky Gambit. It should be noted that, although White can use this Gambit to their advantage, it is unlikely that Black graded greater than ELO 1700 will fall for any cheap tricks.
Here is one very simple line and to put it bluntly, probably one of the cheapest tricks in the book ... As usual - any comments welcome!!
"Chess is a form of intellectual productiveness; therein lies its peculiar charm, and intellectual productiveness is one of the greatest joys of human existence".
Dr Siegbert Tarrasch (1862-1934), The Game of Chess, 1936, translated by G.E. SMITH and T.G. BONE.