Cryptomaniac #1
Cryptomaniac #2
Cryptomaniac #3
Cryptomaniac #4
Cryptomaniac #5
Cryptomaniac #bonus
You'll find in every cache one or more letters on the first page
of the logbook, you'll need them for the bonus cache.
After the first two really difficult mystery caches, I decided
to make a very easy traditional, no complex and annoying riddles,
just seek and pick up.
The cache is located near some institutes of the faculty of
technical mathematics. This should remind us, that mathematic is
the base for cryptographical algorithms and a lot of great
mathematicans are very good cryptographers.