Choosing direction of play
This problem illustrates a useful proverb when deciding where to respond to an invasion.
For problems, questions, or comments (even if they're about this web page or go in general), email the Problem of the Week editor
This problem illustrates a useful proverb when deciding where to respond to an invasion.
For problems, questions, or comments (even if they're about this web page or go in general), email the Problem of the Week editor