ISBN-13: 9781683779827 / Angielski / Miękka / 2016 / 108 str.
Pull out a copy of this Sudoku pocket book whenever you feel tired and restless. Playing will give you the chance to focus and concentrate on finding patterns and the answers too. During the process, you will feel calm and relaxed. It will be as if your mind would suddenly refresh so you get to see the world from a renewed perspective. Begin playing today.