hi Mary -A puzzle for u

Apr 26, 2016, 1:38 AM |

I am now  trying to solve the kknight endgames from the book of Devoretsky Endgame Manual.I find myself in deep problem in this problem showed in the lesson.He did not give the solution od this problem.I spent more then an hour and find this plan but dont know what will be the corrent move order. I never saw a hard endgame puzzle like that in my life

i need help 

can anyone solve it fully

I know Mary u cn do it so  i posted it only for u