It’s a sudoku addict’s dream collection: 200 fantastic puzzles in a range of levels, some simple enough for a child to complete and other brainbusting grids that only a master can handle—but everyone will want to try. Plus, each unique puzzle is generated by hand, not computer, to make a more satisfying experience. It’s so absorbing that solvers won’t know where the time went while they’ve worked their way logically from the Quick and Easy section through Tricky Brain-teasers, until finally reaching and conquering The Ultimate Challenge.  Because it’s in a handy pocket-size, too, you can play anywhere!