Skip to content

Playfair 6 Mystery Cache

This cache has been archived.

OReviewer: As there's been no cache to find for a long time or has had no owner response for at least 30 days, I'm archiving it to keep it from showing up in search lists, and to prevent it from blocking other cache placements.

Please note that if geocaches are archived by a reviewer or Geocaching HQ for lack of maintenance, they are not eligible for unarchival.

More
Hidden : 8/11/2010
Difficulty:
3.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   small (small)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Related Web Page

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:


THE CACHE IS NOT AT THE POSTED COORDINATES!

The correct coordinates for this cache have been encrypted in the ciphertext below. I wanted to create a cipher that would require you to break out a pencil and some paper instead of searching the web for a cipher solver. As far as I know these coordinates can NOT be deciphered using any existing web application or software (unless you write your own or work for the NSA)!

FIRST, you will need to learn how to decrypt a regular playfair cipher. Once you are familiar with that technique modify your method as described below.

The final coordinates are close to a major highway. This cache is NOT accessible from that highway! Parking coordinates will be supplied by the GeoCheck. Don't forget to bring your own pen and please NO NIGHT CACHING! FTF gets a brand new GOTCHA pathtag!

Encryption Modifications:
• 6x6 grid instead of the standard 5x5 grid
• Using the correct keyword technique list 26 letters FOLLOWED BY the digits 0-9
• No need to omit Q or combine I with J
• Be careful not to mix up 0 with O, 1 with I, 5 with S and 6 with G

Ciphertext:
GV CO QL 1C RN 6R BV X7 RW EV S7 Z8 2R TU 4C ER OG 62 VZ WY VP KV 1Y QV D3

Keyword:
PLAYFAIR 6




8/12/10 - Congratulations FTF 4bms

Additional Hints (Decrypt)

CHMMYR: Svefg jbeq = ABEGU

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)