150 sudoku easy medium hard: relax your mind: three difficulty levels. This notebook contains 150 Sudokus of different degrees of difficulty, 50 Sudoku easy, 50 Sudoku medium and 50 Sudoku hard. Perfect for both beginners and avid Sudoku lovers. A pleasant pastime and relaxation for your mind.You can take it with you on the road and the travel time will fly by unnoticed and with benefit for the mind. Specifications: 150 Sudoku, 300 pages8. 5x11 inches
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