Have fun for hours working these 420 Sudoku puzzles from super simple to difficult. Puzzles are a form of entertainment just like movies, theme parks, and TV shows. They stimulate the brain and are inexpensive considering the time invested. For a few dollars, one can spend hours, even days, working puzzles.

Have fun for hours working these 420 Sudoku puzzles from super simple to difficult. Puzzles are a form of entertainment just like movies, theme parks, and TV shows. They stimulate the brain and are inexpensive considering the time invested. For less than ten dollars, one can spend hours, even days, working puzzles.