A puzzle cache
based on the Ordnance Survey Grid References of the locations of
three sets of photos and a bit of arithmetic.
First, find the
location where I took the following two photos -
Locate on an OS
map and work out the six figure grid reference.
(SX) ABCDEF
(Digit sum=26)
Second, just one
photo in this set -
Again, locate on
an OS map and work out the six figure grid
reference.
(SX) GHIJKL
(Digit sum=41)
Final set of two
photos -
(SX) MNOPQR
(Digit sum=40)
Now for the
arithmetic -
ABCDEF
+
GHIJKL
+
MNOPQR
+
5573916221
+
=(SX) xxxxxxxxxx
Which gives you
a ten figure OS Grid reference, enter this into your GPSr, having
changed the settings to British Grid and OSGB map datum, and go
find the cache.
If you don't
want to change your GPSr settings, send me the resulting grid
reference and I'll send you the WGS84 Lat/Long
coordinates.