Customer satisfaction is our priority. We have fixed your complaint about the small print number. In this revised edition the sudoku puzzle number is larger, easier to read and fill out. I hope you can enjoy this puzzle book This specific puzzle book contains a top-quality variety of sudoku puzzles that are guaranteed to challenge you in the best way possible. This book contains 140 Sudoku variations in hard difficulty. The following Sudoku variants are included: Sudoku X Sudoku Hyper Sudoku Twins Sudoku Triathlon A Sudoku Triathlon B Sudoku Marathon Sudoku Samurai The regular sudoku rules apply to every 9x9 grid. Put numbers from 1 to 9 in every empty cell. Each row, each column, and each 3x3 box should consist of one of each digit. The puzzles on Sudoku Variants have one unique solution that you can get using logic, absolutely no guessing needed. Book Features: 140 Sudoku Variants Puzzle Books in Hard difficulty An answer key for each sudoku puzzle Puzzles are printed on high-quality white paper, paper size 8,5 x 11 inches 2 Puzzles Per Page, solving could be easy on your eyes Sudoku puzzles are a proven method for enhancing logic skills. As a logic puzzle, Sudoku is also a great brain game. If you play Sudoku every day, you'll soon begin to see improvements within your concentration and overall brain power. You could reduce your probabilities of Dementia or Alzheimer's simply by solving Sudoku puzzles. By using this selection of sudoku puzzle books you would experience enhanced brain capabilities for example focus, logical thinking, and memory. Choose your book today by clicking on the BUY NOW button at the top of this page.