Sudoku Hard to Extremely Hard Challenging Levels: 100 Puzzles Book For Sudoku Killer, 1 Game Per Page, Brain Training Game, Logical Thinking, Pocket Size

? You are in the RIGHT PLACE!! This book contains of 2 Sudoku Games Levels:- Hard and Extremely Hard. There are 50 puzzles in each lever. All are printed only 1 game per page to make it comforatable to see the game on the pocket size (6"x9"). As we care about your eyes, this book is printed on Cream Paper to reduce glare when playing both indoor and outdoor.