Cache is not located at the posted coordinates. Do not go there to search for this cache. Only go there to search for lost golf balls.
Sudoku is a number puzzle that you have no doubt seen before. Standard Sudoku puzzles have a 9x9 grid. The numbers 1 through 9 will appear once and never be repeated within each 3x3 grid, each row, and each column. This puzzle incorporates all of those rules plus a colorful twist. Yellow squares contain even numbers and blue squares contain odd numbers. Use this to your advantage, along with the given numerals to solve the puzzle. Once you have found the letters A, B, C, D, E, F, G, H, and J in the puzzle, use the math below to find the final coordinates.
Final location: N 38 0K.LMN W 84 PQ.RST
K=F-C
L=B-E
M=E+A
N=D-A
P=C-G
Q=J+G
R=H+G
S=D+E-F
T=H-J-G
Checksum: north 19, west 18