Create some calm in your life by playing Sudoku. This new Rising Sun series by Katsumi features a beautiful art cover. Book 16 in the series helps take your Sudoku playing to the next level by working your way through 200 puzzles with four levels of difficulty. There are 50 easy, 50 medium, 50 hard and 50 very hard. In a handy pocket size with only 2 puzzles per page leaving plenty of room for notes.