3/14/09 - A Whole Lot Of Nothing
7x7 "Zero KenKen"
Rules: Fill in the cells with digits from 0 to 6 so that each digit appears a single time in each row and column. The numbers in the upper-left corner of each bolded region indicate the value of an operation (+, -, x, /) applied to the cells in that region. For multi-cell subtraction and division, the largest number is used first and all other numbers are subtracted/divided from it. Division by zero is not allowed.