Hi guys, I was given a puzzle book resently (Brain Training Puzzles; Difficult Book 1; Carlton) and rather excited cause I really want to get in to logic/maths puzzles. So I have only got a few pages in and saw two grid of hexagons either blue or red and the questions goes: "The colour of each hexagon in pattern B (the middle on) is directly related to the colours of pattern A (the left one). Can you apply the same rules to fill in pattern C (the empty grid on the right)" http://weald10k.fileave.com/hex_puzzle.png Now have tried for ages to figure this out, probably a week, I really didnt want to look at the soulution as I really thought I could solve it. Tried different techniques, I isolated which hexagons didnt colour and tried to see some sort of pattern in them but I could find and general pattern, I did notice that all the red hexagons didnt change had exactly 2 blues and 4 red surrounding them, but that still left the blue hexagons that didnt change! So eventuallty today I gave up and looked at the soultion in the back of the book, I have spoilered it to be fair to anyone who does belive their is a solution but you know :D Spoiler If its bordering cells are predominantly blue, a cell becomes blue. If they are red, it becomes red. If the bordering cells are equal in number, the colour of a cell changes Now unless I am completly mad that solution doesnt even work for the very first hexagon in the grid (Im staring from the top left hexagon :D). Now if anyone does want to see how they say the final grid (pattern C) should be filled in look below, im hoping spoliers work for images too.(Edit it seems spoilers dont work for images so if you would like to see the image you can copy the image URL from the spoiler :D) Spoiler http://weald10k.fileave.com/hexpuzzles.png And if you do apply the rules to pattern B you do infact get pattern C (at least I think so :D) but still thats sort of irrelevant as as far as my mind tells me those rules do not work for patterns A to B. I would really appreciated if anyone can validate that for me, the fact that those rules dont work for patterns A to B. Thanks alot really appreciated.