Easy-to-Hard Sudoku Vol. 1: 250 Puzzles of Mixed Difficulty Levels

Want to take a break and spend some time giving your brain a relaxing boost? Try these addictive "wordless puzzles" and get ready to unwind with Sudoku puzzles. A seemingly simple game of logic and reasoning enjoyed by people from all walks of life and of all ages. They are particularly good for enhancing your problem-solving skills and is one of the best forms of brain training. You will find that Sudoku can truly be one of the highest forms of brain teaser suitable for personal entertainm...