Problems & Puzzles

Records
These are the kind of records that will convert you into a "prime hunter". Soon you'll discover that all you need to top a record is a PC, a good code, and a certain amount of patience ... or an amulet!

Conjectures
These are mathematical "guesses" that only the trained and skilled should try to tackle ...

Problems
Well ... we the amateurs may contribute work on these problems.

Puzzles
Our kingdom…, at last !