Go to
S 38 31.ab
E 145 7.c
where:
a = the number corresponding to the last letter in Nobby Nobbs’ first name
b = the month in which Terry Pratchett was born
c = one more than the sum of the numbers corresponding to the letters in Nobby Nobbs’ second given name
find:
m = the tunnel length in metres
Go to
S 38 31.s
E 145 7.e
where:
s = m2 – m – 1
e = m2 + 3m – 1
n = twice the number of seats at this location
There’s only one way to the cache, which is located at:
S 38 t.uvw
E 145 x.yz
where:
t = the beach number transposed
u = the number corresponding to the first letter in Nobby Nobbs’ first name, minus the number corresponding to the third letter in the same name
v = the sum of the digits of the beach number
w = the number of the Discworld novel in which Nobby Nobbs first appears
x = the number corresponding to the third last letter in Nobby Nobbs’ third given name, minus the number corresponding to the second last letter in the same name
y = n
z = twice the beach number