I'm struggling with coming up with heuristics. Any suggestions for what you guys came up with? or what is the best way to approach heuristics?
After thinking, I had come up at least with one heuristic. It won't cover everything but you can try looking into who is controlling more of the middle column. That would limit someone from wining horizontally and vertically.
Stonedahl's heuristic that looks for characters in blocks of three is fairly effective, but you can make it better in a number of ways. That's where I started when making mine.
Can you share one of those with me?