Sudoku is a logic-based combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the “blocks”, contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which typically has a unique solution (see wikipedia).
First Step: solve the super_sudoku puzzle
Second Step: in coordinates N39 58.435 E116 28.545 you can see a BIG number above the door of the wall. The number is "X". So you need to see if you want to get the right answer.
The real cache is located on:
N 39° 58.(H4)(D6)(X-F8) E 116° 28.(B1)(G9)(X-A3)
You can be check the coordinates if you get the answer
About the cache
Cache is 5ml tube. BYOP.
Please be aware of watching muggles!!!