I was asked by Mel to create a puzzle cache for the 2018 Mega event. I have come up with a slightly different Sudoku for your enjoyment(?).
Needless to say the cache is not at the posted co-ordinates although they may (or may not) provide a sort of clue.
I should not need to say it but you will need to take your own writing implement satisfactorily to prove your finding of the cache.
The cache can be found at:-N 54 0A.BCD, W 001 2E.FGH
Where: A = M - N and E = P - Q

You can validate your puzzle solution with certitude.
This cache has been placed for the 10th Anniversary Mega - Yorkshire 2018.