Strimko is a type of brainteaser puzzle I've recently been introduced to. It reminds me of Sudoku in the fact that each row and column can contain a number only once. However, in Strimko, the grids vary in size from 3x3 to 7x7 and a number can also only be found once within a "stream". A "stream" is a collection of numbers connected by lines.
In the picture below, you will see an example of a beginning puzzle and its solution.

You can find more information online about these puzzles and there are also various free apps you can download to play on your phone.
To find this geocache, however, you will need to solve the 5x5 Strimko grid below. Find the numbers that replace each letter in the grid and then use the information given to get the coordinates. NOTE: Capital letters and lowercase letters are not the same thing. Pay close attention to the equations and do not mix the two up.
Final Coordinates:
N 38 deg 2A.BCD
W 81 deg 4E.FGH
A = j-k
B = b+h
C = r+s
D = p-l
E = e-m
F = a-g
G = n+d
H = c+i

Note: If images are missing, they can also be found in the photo gallery.
You can check your answers for this puzzle on GeoChecker.com.
Cache difficulty rating is based on the learning curve necessary for someone who has never done this type of puzzle before.
CONGRATULATIONS to PCL_EL_HEFE on the FTF!