by ravel » Fri May 12, 2006 8:05 pm
Uff, do you really want to solve it ?
In the moment i am fed up with ultra hard puzzles, forgive me, but i dont want to spend much time for it , though i am not sure, that there is no elegant solution.
But one step of my programs hints is very easy: r4c8 cannot be 3, because it would kill both 3's in the sub diagonal.