The following 4 images display four scales with two sets of three stones on each. In three images the scale is even meaning that the total mass on both sides of the balance is equal. One scale is imbalanced: one side is heavier than the other. Your task is to figure out the mass of each stone illustrated by a letter. The mass of a stone is an integer value from 1 to 9. One value can only be used once.
(14/05/2017 The cache box is relocated and the formula of the final coordinates is changed accordingly. Use Geochecker to see a spoiler image.)
The cache is hidden at location
N 49° 5(E-B).(A)(C)(D)
E 006° 0(F-C).(A-D)(B)(E)
Right values for the letters can be found out by solving the puzzle.