Would you like to increase the effectiveness of your mother's brain by giving a gift? Increase the effectiveness of someone's brain function with Sudoku puzzles. This excellent Sudoku puzzle book is the ideal way to keep your mother's mind occupied and give her endless hours of fun! Features: 4 Puzzles per pageMore then 300 puzzles6 x 9 inches paper sizeAll the answers for the puzzles are found after the puzzle pages Puzzles are printed on high quality paper Excellent for improved brain functions such as concentration, logical thinking and memory. Perfect gift your mother. See also the other books from Maxwell Donaldson. Order your gift NOW!