Mad About Sudoku #1 ($0.99), by Puzzazz, is a new game in the Kindle catalog (hey publishers - it is getting hard to find the new Active Content entries in the Kindle store, so be sure to send me a press release when you have a new one).
Book Description
Are you mad about Sudoku? Or mad at Sudoku? Either way, this collection of carefully constructed and calibrated Easy Sudoku puzzles is right for you.
Each of the 33 easy puzzles can be solved without heroic effort, and you can always get a hint when you need one. You'll appreciate features like in-cell notes that let you solve puzzles as easily as you do on paper. You can also move on to another puzzle when you get stuck, and return to that previous puzzle at any time.
If you've enjoyed solving the easier puzzles in paper books, then these puzzles are perfect for you. Enjoy!