Do not go to the published location. You may find yourself in the middle of a football game or a cricket match. But the cache is less than 3 km.s away.
To find GZ, you need to solve the puzzle below: The rules are simple.
1. You need to end up with the same number of noughts and crosses in each row, and each column. (i.e. for the real puzzle, there needs to be 6 noughts and 6 crosses in each row and each column).
2. You can't have more than two noughts or two crosses together, vertically or horizontally. (Diagonals don't matter).
Here is a simple puzzle to practise on, with the final solution, just so you have some experience when working on the real puzzle.
The Practice Puzzle
The Practice Puzzle Solution
The Real Puzzle
There are six shaded areas, each with a corresponding letter from A to F. Once you've solved the puzzle, count the number of crosses in each area - this is the value of that letter.
GZ = S 37° 5A.C(D+3)B E 145° 0(B-E).(F-E)(F-D)(F-A)
The cache is a micro, slightly bigger than a standard bison tube and is located close to a pathway. There is no room for swaps. Please bring your own pen. And watch out for passing muggles.
