Sudoku variants galore 15 different kinds of Sudoku puzzles, 10 of each, adding up to 150 very special and unique puzzles, which are not available elsewhere. The basic split is into Flower Sudoku (overlapping Gattai-5 puzzles) and Outside Sudoku (with the clues thrown outside the box). However, both of the two basic varieties come in these various flavors: Classic Flower and Outside Sudoku Diagonal Flower and Outside Sudoku Jigsaw Flower and Outside Sudoku Consecutive Flower and Outside Sudoku Non-Consecutive Flower and Outside Sudoku Odd-Even Flower and Outside Sudoku But wait That's not all There are a few more varieties: Hyper Outside Sudoku (Windoku) Outside Twodoku (Gattai-2) and Flower Killer Sudoku It doesn't get any better than this, folks Top quality puzzles printed on top quality paper, one puzzle a page. Enjoy