NOTE: The cache IS NOT located at the above coordinates!
Code-Doku is essentially a Sudoku puzzle that uses letters instead of the digits one through nine. When you have determined the solution to the puzzle, the letters in the underlined squares will spell out a hidden message, reading left to right and then top to bottom.
You cannot completely solve this puzzle using the rules of Sudoku alone. You will need to make choices that give a meaningful message. The message hidden in this puzzle is made up of two short phrases. The phrases are some advice that you might give to a newcomer who has asked you what it takes to become a dedicated geocacher.
Here is the puzzle:
Place the letters A, C, E, H, L, P, R, S and T exactly once in each row, column, and 3x3 box. Once you have the solution, enter the entire hidden message without punctuation into the certitude checker. If your answer is correct, you will be given the final coordinates of the cache.
You can validate your puzzle solution with certitude.
This cache was selected as 
on July 28, 2020.