@J12t
Oka, so you've got lots of different blocks. You know what the shape of the block is, but you don't don't know what number is on them until you flip it over.

You're trying to arrange the numbers into pi, ensuring the edges of adjacent blocks line up. You already know what the digits of pi are, and the blocks fit together in a limited number of ways.

You enlist a bunch of friends to place the blocks on a number line to make the digits of pi.