This book contains 100 Sudoku books 16 x 16 puzzles. All of the puzzles inside the book are 16x16 in medium level.100 classic sudoku 16x16 puzzles Sudoku puzzles grid size in the book are 16x16 that are played with 16 numbersAn answer key for those sudoku puzzle Puzzles are printed on high quality white paper, size 8,5 x 11 inchessudoku one puzzle per page - Every single puzzle is spread out on one full page, solving could be easy on your eyesSudoku puzzles are a proven method for enhancing logic skills. As a logic puzzle, Sudoku is also a great brain game. If you play Sudoku everyday, 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.