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Team Perrito Blanco: A victim of Irene.

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## Mate in One – Checkmate! Redux

A cache by Team Perrito Blanco Message this owner
Hidden : 08/11/2008
Difficulty:
Terrain:

Size:  (regular)

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### Geocache Description:

THE CACHE IS NOT AT THE LISTED COORDINATES!!

This cache used to be one in a series of 5 but I've now made it a stand alone cache.

You'll need to figure out the move that produces checkmate for the White side. This move will reveal the missing digits of the coordinates

checkmate - Any position where a King cannot avoid capture. The objective end of a chess game.

You'll need to understand a little about chess notation in order to produce the missing digits in the coordinates of this cache. A chessboard's squares each have a file (column) letter and a rank (row) number assigned to them. Just like the latitude and longitude you use to hunt geocaches.

In the following position,

the checkmating move would be to use the rook on h1 to take the bishop on h8. That move would be h1-h8. We are only concerned with the number part of the move for our cache. The number of the square of the beginning of the move (h1) shall be "a" and the number of the square of the end of the move (h8) shall be "b". For the move h1-h8, a=1 and b=8.

Here is the puzzle you need to solve:

Now once you figure out the checkmating move, you'll have your own "a" and "b" variables. The final cache coordinates are at the following location:

N 40°59.uvw', W074°17.xyz'

where
u= a-4
v= b-a
w= a-4
x= a+3
y= b+3
z= b

The cache is a camo-painted ammo box with trade items and a pencil inside. Bring your own writing instrument just in case though. We hope you enjoy this puzzle!

Va gehax bs gerr.

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)

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