Sudoku Puzzle Adventures - Hard

Sudoku Puzzle Adventure is a great way to immerse yourself in a problem solving activity that stretches and exercises your brain. Studies have shown this to be a great guard against Alzheimer. The 150 carefully chosen Sudoku puzzles are an ideal introduction into the exciting world of Sudoku. Graded HARD, they will provide you with hours of fun and satisfaction. Whether you become or feel tormented, terrified, challenged, frustrated, or victorious is up to you. Most importantly, have fun. And take a break should the occasion warrants it. There's never been a better time to go Sudoku. Welcome to the club