Beat screen fatigue and challenge your mind with this modern Sudoku book packed with 150 brain-teasing grids, the perfect Sudoku gift for puzzle lovers. Portable enough to take on your commute or pack in your suitcase, but stylish enough to display on your coffee table, this classic collection of Sudoku puzzles is sure to keep your mind sharp. The puzzles span a range of difficulties, encouraging you to work your way through the levels, while the...