Gaming-Monster.com Just Realeased a New Game: Sudoku-Challenge
There are over 3000 great Sudoku boards you can play so you won’t get bored for any time soon. If you get stuck you have a “show errors” sections and you can always restart the same board if you made too many mistakes.
In the top right hand side corner there is a timer that starts the same time you start a new board.
YouTube video with the game play: