Title: Zero Sum
In the first of three consecutive alternate puzzles, here's a sum puzzle with one small tweak. Check out the new first rule.
The official rules:
- The digits 0 through 8 appear in each row and each column exactly once.
- Digits in each shaded region must add to the indicated sum.
- Squares with multiple colors contain a number that’s used in the sum for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that doesn't violate the first rule.