Killer Sudoku 3 - Third Game
There is nothing that makes Sudoku more challenging than the addition of other rules. To begin with the rules of Sudoku are only two. The first is that the numbers 1 to 9 must be placed in the 3X3 grid boxes without repeating any of them. The second is that the greater grid, measuring 9X9 must have the same numbers in every column and row and the numbers must never repeat. This is challenging enough for any Sudoku player. Now this game adds another twist in the game. The grid has been divided into regions or cages, which are marked with thick red lines. The cages have a number appended to them. The rule here is that no number in the caged should be repeated and that all the numbers in that cage should add up to the appended number. How about that for a real brain twister? The best way to start is to fill in the boxes with a single number appended to them. When you hover the mouse over any of the boxes you will see a hint on the side as to the numbers that can go there, and which add up to the appended number. In this game, you can use the scan method or the pencil method. In fact there is a button at the bottom of the game which shows you the pencil marks that you could have made. Click on the larger box to use the scan method or click on the smaller box to use the pencil method. The game starts with 9,000 points and these reduce as the time goes by; the faster you are at solving the puzzle, the higher your points will be. There is a timer which will tell you how much time you have taken to solve the puzzle; welcome to Killer Sudoku, the free online Sudoku game.