Sudoku A Game for Mathematicians 304 Puzzles Easy and Medium Difficulty

Enjoy the Sudoku game with 300 easy and medium puzzles. Hours of entertainment. Makes a great gift. An amazing way to develop and practice problem solving skills. Change the boring moments of waiting for someone or the day that is stuck in the house, can't go out because of heavy snow. This book will help kill those boring time into a relaxation and keeping your memory sharp.