Hypersudoku

Turn on the hyper mode as you reach a more advanced level of the number puzzle which sweeps the world by storm. In this game you will be given a 9x9 grid, which is evenly divided into 9 squares. Your goal in the game is to put numbers 1 to 9 onto the blanks of the grid, such that the numbers will not be repeated in each row, each column, and each 3x3 square. In addition to that, 4 additional groups will be highlighted in deeper background, and the numbers in each of these groups should not be the same. You can click a number on the number pad on the left of the grid to fill in a blank. If a number you entered violates any of the above rules, the corresponding squares will be highlighted in red, and you can click the cross button at the bottom of the number pad to erase the number. If you are not able to make any moves, you may click the Hint button under the grid to reveal one of the answers, but note that each time you do so 100 seconds will be added to the time you have spent, as recorded at the bottom left corner of the screen. Take over all of the areas and become the ultimate winner.