Dan Croker has two obsessions - Sudoku and frogs. So he just had to combine his loves and make the Famous Frog Sudoku books. The Sharper Pencil Series Book 5 contains 600 puzzles, 300 easy and 300 medium difficulty. There are 4 puzzles per page leaving plenty of space for notes. With a fun and cheery cover that is sure to brighten your day. Solutions are given at the end of the book. Look out for many more Famous Frog Sudoku books!