Daily puzzles #10.
Yesterday's puzzle was enough interesting to collect more than 35 comments. It was really tough. Let's see a solution.
Hopefully some of you were able to get at least some use from this classical example. Corresponding squares is one of the most difficult in pawn endgames. But if you really want to know it - there is nothing impossible!
Now, I offer you a practical position. Can White breakthrough or not? Good luck! Solution is here: