Title: Color Blur
One day my older daughter saw me trying (in vain) to come up with a name for this puzzle. I had some version of writer's block--the kind least likely to matter, I suppose. I decided to let her name this puzzle, and "Color Blur" is what she came up with.
The official rules:
- The digits 1 through 9 appear in each row and each column exactly once.
- Digits in each shaded region must multiply to the indicated product.
- Squares with multiple colors contain a number that’s used in the product for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that doesn't violate the first rule.