This cache is not at the posted coordinates.
This puzzle is part of a series. Make sure to collect the code to find the final puzzle, Final Number.
Just a slight variation on a sudoku.
The cache is located at N 38 12.xxx and W 122 29.yyy where:
xxx = A*B*C - D*E*F and yyy = G*H*I*K - L*M*N
You can validate your puzzle solution with certitude.
Congratulations to thanman2 for FTS!
Congratulations to skwirlqueen and Blackavar1 for FTF!