Five Autobots were captured by a demented Decepticon that was obsessed with torturing his victims just like in the Saw movie series. While saying "Do you wanna play a game?", he strapped canisters filled with explosive chemicals on the Autbots backs. If the Autobots fail the Decepticon's game, the chemicals will explode killing all Autobots. (Rumors are that in addition to enjoying the Saw movies, the Decepticon likes to geocache in his spare time, and often gets inspiration from buddysally puzzle caches... he doesn't want other Decepticons to know this though...)
The Autobots were shown a map of one of the floors of the demented Decepticon's 'Torture Warehouse'. This entire floor is open, with black paint on the ground drawn to make a grid. Each Autobot will be assigned a letter, A through E and will be given starting positions on this grid. At these starting positions, a string is attached to a plug on the back of their chemical filled canisters. Once they start moving, the string will pull the plug out, which will spill a trail of chemicals on the ground along their path. The Autobots are to traverse the grid on the ground and make it to a certain place on the grid which matches their assigned letters. Once there, they will find a key which will release the canister, allowing them to escape safely.
The Autobots were told that each one has a slightly different chemical on their back, and if it comes into contact with any other chemical from a different Autobot, it will explode with enough force to kill all Autobots on the floor.
Because the Decepticon was sure that the Autobots would not escape, he revealed the location of the Energon Cube that he stole and hid near an Autobot hideout. He said that they can find the Autobot hideout here:
N45° 19.(B+D-2)(A+1)3' W075° 55.(C-2)(E-3)3'.
Where A is equal to the digital root of the number of 'units' that Autobot A travelled, and B was equal to the digital root of the number of 'units' that Autobot B travelled, etc... As a hint, he said the digital root of (A+B+C+D+E) is 3.
Here is the picture that was shown to the Autobots, showing the grid, their start positions, and their destinations:
They were also shown an example of how to compute the 'number of units traveled':
They were told that they are to count the number of 'platforms' or 'levels' of the Autobot hideout, not counting the ground, and call that 'Y'. The Energon cylinder was hidden a distance of 11.5 meter times Y away from the Autobot hideout, in a more Western than an Eastern direction.
Much to the Decepticons disbelief, a few hours later the Autobots escaped the warehouse unharmed. The Autobots never went to find the hidden Energon Cube, believing it just to be another trap.
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Transformers: Robots Geocaching in Disguise - Season 2 - Autobot Hideouts
For a list of every cache in this series, look at the bottom of the 1st cache of this series here: GC7YCMK_autobot-hideout-1