Sudoku?s spreading faster than you can count to nine. But these seriously addictive, completely captivating puzzles can get fans a little gridlocked from time to time.  They?ll be able to get back in the game with the help of mathematician and bestselling author Robin Wilson?himself a sudoku aficionado. He?s got the solution to unraveling these conundrums, with 52 tried and tested tips and tactics.  How to Solve Sudoku takes you through them, one by one, with plenty of examples and practice grids so that you can hone your skills before you move on to the next fiendish brainteaser.