Eliminate the impossible and, no matter how improbable, whatever is left must be the answer.-Sherlock Holmes In my half hearted effort to keep my mind working as it should I have taken to doing Sudoku puzzles. I know there was some study recently that said Crossword Puzzles don’t actually help the mind, but who believes that? Besides, Sudoku works a slightly different part of the brain, what with all those numbers. Solving Sudoku puzzles seems easy enough, until you get to the end and find that you put a number in the wrong place and it all went wrong after…