First, solve this easy Su-Do-Ku puzzle in the comfort of your
living room (or in the car on the way to the cache if you're not
driving).
Bring your solved puzzle to the coordinates published above for
this cache. There you will find an Altoids tin containing a key
that will translate your solved puzzle in to the coordinates for
the real cache. The real cache is a medium lock-n-lock container.
There is a whole book of Su-Do-Ku for the FTF - if you find you're
hooked.
The rules of Su-Do-Ku are very simple: Each Sudoku has a unique
solution that can be reached logically without guessing. Enter
digits from 1 to 9 into the blank spaces such that every row, every
column and each of the 3x3 grids contains one of each digit. If you
need more assistance, visit websudoku.com for help.