Warm greetings,
Some years ago, when I solved the two very hard Chess problems that you posted
in your site, I
told you that until then, I had been considering as the most difficult and most
beautiful the following problem, which white mates in three moves:
White to move and mate in 3 moves
In this problem, there are two different solutions available should the Knight
be taken by either the Pawn on f3 or the one on h3 after white makes the first
move.
If you like it, you might publish it.
Sincerely
Luis Horacio Franco B.
Dosquebradas, Risaralda, Colombia.