There’s 100 each of Easy, Medium and Hard Sudoku Puzzles, that’s 300, as well as all the Solutions. They’re presented in the form of a printable PDF which you can print out for yourself. Solving Puzzles is a great pastime, but not only that, but it’s a great way of keeping your brain in great working order. Keeping your brain active and stimulated is one way of postponing or even avoiding dementia. There’s 300 Puzzles in this PDF which should keep you busy for many hours. just download, print and enjoy them.