The initial coordinates should take you to a stone garden in the
backyard of the building. To determine the coordinates for the
final cache, you need to follow a certain path. The path is started
from the SW corner of the landing near the entrance. Initially,
you'll have to be facing the garden.
The path goes as follows:
| F |
R |
R |
F |
R |
R |
R |
CCW90 |
R |
R |
R |
B |
R |
R |
B |
| CW90 |
R |
F |
F |
F |
F |
F |
L |
L |
L |
CW90 |
B |
L |
L |
F |
| L |
L |
B |
B |
L |
L |
L |
L |
CCW90 |
F |
F |
F |
R |
F |
F |
| F |
F |
F |
R |
R |
R |
F |
F |
F |
F |
L |
L |
Now count the number of rock tiles straight behind you. Multiply
the result by the unlucky number to get the direction of the cache
from your current location. Multiply the result by two to get the
number of long steps you need to take to reach the cache.