Skyscraper fun with OR-Tools!

My friend Mike recently showed me a puzzle game called Skyscrapers, which you can play here. It’s a neat idea, in the general theme of “fill in the numbers with these constraints” puzzles like Sudoku or Verbal Arithmetic.

The rules are like so. You’re given a board like this, representing a group of city blocks (one building per square), with numbers around the sides: read more