How Geocaching Works
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The cache can be found based on distances to three reference points.
The distances are:
The integer part of the distaces ie A, B and C you have to figure out by yourself. Instructions for a Public Geochecker for the product A×B×C will be added here. But hey, what are the reference points? you may ask. Don't ask me thats why it's difficulty D5. D will be less than five once you guess the right reference points.
[Geochecker:] cyrnfr bayl bar purpx / pnyraqne qnl (Tebhaqfcrnx gvzr). Naq gung'f gbgny, abg cre hfre.