In this Sudoku game, using any of our "helpers" or "cheats" will count against you. Check it out!

Our original Sudoku game allows for you to use cheats without penalty. But this version of the popular puzzle game, you'll hesitate if, and when, you click for a cheat or two.

So, put on your Sudoku game "hat", lean into the screen and get ready for a challeging Sudoku puzzle online at Great Day Games. For a game with no cheats at all, try Sudoku Ultra.

Remember... The more Treats you earn playing free online Sudoku, the more sweepstakes you can enter!