This Sudoku puzzles book specifically designed for Nanny, to keep Nanny entertained for hours! This is the book that contains 150 Sudoku puzzles for Nanny, the perfect gift for any Nanny. All of the puzzles inside the book are 9x9 in extreme hard difficulty level. Sudoku rules are very easy. Each number 1,2,3,4,5,6.7,8 and 9 must appear only once in each row, column, and region. Complete this puzzle so that every row across, every column down and every region contains the numbers 1 to 9. Each row and each column have only one and exactly one of each of the numbers 1,2,3,4,5,6,7,8,9This book contains 150 classic sudoku extreme hard difficultySudoku puzzles grid size in the book are 9x9 that are played with nine number 1,2,3,4,5,6,7,8,9 Large Print Sudoku Book extreme HardLarge and Easy To Read FontAll puzzles come complete with solutions towards the back of the book so if you get stuckPuzzles are printed on high quality white paper, size 8,5 x 11 inchesA simple instructions for beginnersSudoku 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.