The cache is not at the posted coordinates.
Combining our two favorite hobbies, we are creating a series of caches based on board games! You will most likely need the board game to complete the puzzle. If the puzzle inspires you to play the game, let us know, we'll be happy to game with you.
These are the final coordinates:
DA R.(H-O)NQ
FP J(L-C).(I-N)(M-G)B
Open the game box and it will make sense.