This is the tenth in an ongoing series of caches related to popular board games past or present. In each case an Internet search will be needed to calculate the whereabouts of the cache, once you have solved the problem.
Not Chubby in the UK, this could be considered a windy game, especially if huffing and puffing goes on. To add a twist, this could be an SS.
Including the board as 1 piece in each case,
calculate the total number of Frisian playing pieces (DD)
of Derecha playing pieces (EE)
of Canadian playing pieces (FF)
and find the date given to the board found at Ur (YYYY BC)
Calculate DDEE+FFEE+YYYY to get PQRST
The cache is not at the given co-ordinates, but is in the vicinity of
North (ST+R) (QR-PT).(PTT-S-Q-P)
East (PP-PT) (RP+RT).(PST-P)
You can check your answers for this puzzle on GeoChecker.com.