THE POSTED COORDS ARE NOT THE CACHE COORDS. YOU MUST SOLVE THE PUZZLE TO GET THE CACHE COORDS
The completed puzzle uses numbers 1 through 16. Each number is used once.
In the NW, there are four consecutive numbers.
D-L=L
The SW only has single digit prime numbers.
E-F=K
E is two times M, which is two times B.
F-M=J
The NE full of even numbers.
P is odd.
The SE contains only two digit numbers.
F-M=J
D is the only two digit number in the NE.
G-C=C
The sum of the NE is two times F.
When you get the puzzle solved, you just need to do a little simple math:
O-(I*C) = A*,M*,N*
G-F+I = B*,C*,D*
H-(K*A) = E*,F*,L*
D-C = G*
K-A = H*,I*,J*
G/C = K*,O*
Plug the resulting numbers into the following format:
N A*B*° C*D*.E*F*G*
W H*I*J*° K*L*.M*N*O*
This is DD° MM.MMM format, so if you put the numbers in order corresponding to their letter, you will have the coordinates.
Thanks to Fractal for the puzzle and graphic.