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Mystery Cache


A cache by -CacheHound Send Message to Owner Message this owner
Hidden : 8/30/2013
In Iowa, United States
3 out of 5
2 out of 5

Size: Size: micro (micro)

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How Geocaching Works

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Geocache Description:

***This cache is NOT at the posted coordinates***

The idea for this puzzle was loosely inspired by a scene from one of my favorite MacGyver episodes.  At a university physics competition, one of the students presents a door with 12 deadbolt locks on it.  Some of the locks are innitially locked and some are initially unlocked.  Each has a key that you may turn and it will either lock, or unlock that deadbolt.  However, you cannot tell which position the lock is in based on the direction you turn the key.  To solve the puzzle you must get all twelve deadbolts unlocked at the same time.


For this puzzle let's use + and - to represent the two possible positions for each of the twelve locks. You must enter the correct 12 character sequence on the certitude solution checker below.  If your solution is correct, you will be given the coordinates for the cache. Enter your 12 character solution without spaces, using only 12 plus and minus symbols.  Example:




You will be limited to a certain number of guesses over time (10 tries per 10 minutes if you sign in) so it may take awhile to try all possible combinations. 

212 = 4096 possible combinations


Be cautious of barbed wire near the cache site.


 ±±± Congratulations JPS and dawnandgary, FTFs ±±±

***  First To Solve is bjm3rd ***

You can validate your puzzle solution with certitude.

Additional Hints (Decrypt)

Creuncf gurer'f n dhvpxre jnl

Decryption Key


(letter above equals below, and vice versa)



15 Logged Visits

Found it 9     Didn't find it 2     Write note 1     Temporarily Disable Listing 1     Enable Listing 1     Publish Listing 1     

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**Warning! Spoilers may be included in the descriptions or links.

Current Time:
Last Updated: on 2/3/2017 11:43:11 PM (UTC-08:00) Pacific Time (US & Canada) (7:43 AM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum

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