21 January 2015


Title: Brainfreeze
Rating: 3/5

As I've mentioned before, conversations with Laura Taalman (of, among other things, Brainfreeze Puzzles) sparked some ideas about the puzzle variations that make up this blog.  Here's to inspiration.

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. 

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