What is the best defence for White against this:
NOTE: If you don't know how it'll be played further: Black wants White to play Nxe4, then Black will play d5, and that will lose either White's Knight or Bishop. Most people would play Bxd5 then, so they won't have to move their Knight on f3, after dxe4.
A friend told me this is the best defence. Try to solve it!
Select the text between the brackets to read it (when you've solved the puzzle):
[He could have a point there, since it leaves Black in a terrible King's position: the King isn't able to castle anymore and only two pawns will be defending the King on the King's side.]