Sudoku is probably the most popular and well-known number puzzle. I have created the following Sudoku books so far: Sudoku for Beginners Sudoku for Advanced
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Kakuro
Like Sudoku, Kakuro is a number puzzle that is particularly popular in Japan (the name Kakuro comes from Japanese). However, it is also becoming increasingly
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Quiz Books
Quiz shows on TV are proof that this form of leisure activity is quite popular. I have created a quiz book aimed at basketball fans:
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