Dan Croker has two obsessions - Sudoku and frogs. So he just had to combine his loves and make the Famous Frog Sudoku books. This Bathroom Sudoku Pocket Series Book contains 200 very hard puzzles in a compact size, with 2 puzzles per page. Featuring a fun and colorful cover that is sure to brighten your day. Of course, you don't have to be in the bathroom to do these puzzles! Solutions are given at the end of the book. More Famous Frog Sudoku series - Sharper Pencil Series, Brain Yoga, Beach Bum Series and Travel Series. Size: 5.5" wide by 8.5" high.