Considering your opponent has a 2000+ rating knows it is unlikely but still possible to mate you... it cannot be forced but if you blunder into it, well.... sounds like a 50 move wait...
http://en.wikipedia.org/wiki/Two_knights_endgame
B
It's been a while since I looked at this problem, but as far as I know you can't "blunder" into a mate with K against K+N+N. I don't think it possible at all. Am I wrong??
Why not just cut the legs off the horsies and demoted to a pawn then push it up to the end and promote to queen and win !
That's the smartest thing I've read all day!