Kakuro
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Instructions

Fill in all the squares on the board by clicking a number in the grid on the left side of the screen and then click on the Kakuro box you want to put that number in. If you make a mistake, you can use the X button in the grid the same way that you would use a number to clear out a box.

 

Fill in all the squares on the board following these rules:

 

  1. The numbers in vertical and horizontal row groups (not entire rows) cannot repeat.
  2. The numbers in each horizontal group must add up to the number that appears in the triangle at the far left of the group.
  3. The numbers in each vertical group must add up to the number that appears in the triangle at the top of the group.

HINT: Fill in all the single group squares first! See if these lead to any double square groups you can get and so on. You can move your mouse over a triangle number to see all of the number combinations that add up to that number.

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