Coordinates above are false.
You can't find the coordinates without solving the Sudoku above.
You will find the cache at gridreference:
N 11 93 53 32 67 48 99 54 52 53 65 15 58 21 22 24 86 85 84
E 21 43 89 23 32 84 45 44 25 35 58 51 55 22 22 42 85 84 85
Vg gnxrf gjb va cevzrf gb svaq bar.