Introduction to OOP: Chapter 5: A Case Study : Eight Queens
Here are a few observations we can make concerning this problem:
Queens can be assigned a column, problem is then to find row positions.
One obvious behavior is for a queen to tell if it can attack a given position.
Can structure the problem using generators - each queen can be asked to
find one solution, then later be asked to find another solution.
Intro OOP, Chapter 5, Slide 4