Please see number 1 in the series (Are you a square?) for a full description of the walk, there is street parking available in the village of Weald.
The cache is not at the posted coordinates.
This is a relatively simple puzzle, the information below will help you to solve it and might assist with a slightly harder one placed close by.
This puzzle consideres the number of hexagons in a hexagon divided into a diffrent number of equilateral triangles.
The first example is where the length of the side for the triangle is equal to that of the hexagon; there are six triangles and one hexagon.
When there are two triangles on each hexagon side there are seven hexagons composed of six trianges and one composed of 24 triangles; eight hexagons in all.
When there are three triangles on ech hexagon side there are 19 hexagons composed of six triangles, seven hexagons composed of 24 triangles and one composed of 54 triangles; a total of 27 hexagons.
The general solution is that the total number of hexagons N formed when there are n triangles along each side is given by N=n x n x n or n3.
If the total number of hexagons where each side is composed of 9 triangles is abc then the cache can be found at;
N51 12.cba E000 09.(b+b)cb
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