- Difficulty:

- Terrain:

Size: (micro)

#### Watch

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## Geocache Description:

**The cache is NOT located at the posted coordinates.**

**Note:** For the purpose of this puzzle, let's only deal with 2D bricks instead of 3D.

I have with me **15** bricks of size **2x1** square unit. I've always wanted to use all of them to build a rectangular brick wall, **3-unit story high and 10-unit wide.**. I'm now curious on how many different arrangements we can do this. Please help me find this number and I'll reward you with a cache ...

For your information, I've attempted to fill only up to 3x4 and I know there are 11 different ways to do this ... I hope this helps.

Call the number of different arrangements to do this **X**. Divide **X** by 1000 and then:

- subtract it from the posted **North** coordinates, and

- add it to the posted **West** coordinates.

**FTF Prize: A $1 gold coin**

Checksum of **X** is **13**.

**Kudos goes to 40, who killed the puzzle and nabbed the FTF. Congrats to Roktman as well for a very careful calculations of the different arrangements.**

**
Additional Hints**
(Decrypt)

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