Killer Soduku Math Error
The other day I was sure I knew what most go in a box but Soduku gave me a red square indicating that 9 was not the right answer. I went on to solve the puzzle except for that square. As you can see, Killer Soduku says the last digit left to be used (on the lower right) should be 8. But 4+2+9+7 = 22. If the total is 31, the answer must be 9, not 8.
