My Big Book Of Soduku Puzzles Vol 2: 201 Difficult Sudoku Puzzles EditionPaperback, 3 March 2016

Who wants to play Sudoku? Good, count me in! Sudoku is a traditional math game that has survived the times before it continues to be well played and loved. It comes loaded with mental and emotional benefits. It help you focus better, have longer patience and work harder to achieve the result you want. It also encourages you to memorize and use your logical and analytical skills. Play today!