GC6RB7M Chess 2641 (Unknown Cache) in New South Wales, Australia created by yamutha

GC6RB7M ▼

A cache by yamutha Message this owner

Hidden : 9/1/2016

Difficulty:

Terrain:

Size: Size: micro (micro)

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Geocache Description:

The cache is not at the above advertised coordinates but you will have to visit to collect some information.

Chess:
Chess is played on a square board of eight rows (called ranks and denoted with numbers 1 to 8) and eight columns (called files and denoted with letters a to h). The colors of the 64 squares alternate and are referred to as "light" and "dark" squares. The chessboard is placed with a light square at the right-hand end of the rank nearest to each player.

By convention, the game pieces are divided into white and black sets, and the players are referred to as "White" and "Black" respectively. Each player begins the game with 16 pieces of the specified color, which consist of one king, one queen, two rooks, two bishops, two knights, and eight pawns. The most powerful piece is the queen and the least powerful piece is the pawn.

The pieces are set out as shown in the diagram, with each queen on a square of its own color, the white queen on a light square and the black queen on a dark.

The objective is to 'checkmate' the opponent's king by placing it under an inescapable threat of capture. To this end, a player's pieces are used to attack and capture the opponent's pieces, while supporting their own. In addition to checkmate, the game can be won by voluntary resignation by the opponent, which typically occurs when too much material is lost, or if checkmate appears unavoidable. A game may also result in a draw in several ways. [adapted from https://en.wikipedia.org/wiki/Chess]

The Puzzle:

Step 1.	BEFORE PROCEEDING WITH THE CHESS: You are after a four digit number with properties that include Deficient, Evil, Happy, Lucky, Odd, Prime, Square-free, Twin and a Wieferich prime. *Find this number before proceeding to Step 2.*
Step 2.	The Xtracon Chess Open (formerly the Politiken Cup) is an international chess tournament and the main feature event of the annual Copenhagen Chess Festival. Organized by the Copenhagen Chess Federation (KSU), it was originally set up to give Danish players the opportunity of international experience and title norms. Starting from modest means in 1979, with just 22 contestants, it has grown to become one of the world's largest and most respected open chess tournaments. To solve this puzzle you will need to replay the game of Thomas Nielsen vs Thormod Furu during the Politiken Cup in 2001. The game uses English Opening: Caro-Kann Defensive System / Anglo-Slav Variation.
Step 3.	You can access/replay this game at http://www.chessgames.com/perl/chessgame?gid=1173830 or using the following:
Step 4.	You will need to visit the published location to create a representation of your 'Post Office Chess Board'. There are several grids that could be used but, the number you found on Step 1 needs to be at the left-hand end of the rank nearest to player Thomas Nielsen (playing with white) .
Step 5.	Working through the game using Steps 3 & 4 on the 'Post Office Chess Board' should generate fifteen 4-digit numbers. Use them and the table below to find the final location!
Step 6
Step 7	GO GET IT! The cache has been moved approx 30m to the north!!

The cache is only small (no room for swaps) so bring your own pencil and maybe a tool to extract the log. This may not be a busy area but please ensure you aren’t seen retrieving or replacing the cache and that the container is placed back properly to prevent muggling.