You're getting downvotes but honestly I agree. Who cares about board games? We should've moved on from this once we "solved" chess and Go. There are more important things and it's not remotely surprising that a computer can beat a human when there's a simple, abstract optimization problem to throw computing power at. Make it creative...now that's a challenge worthy of the top AI talent.
It might play creatively, but it doesn't create any useful knowledge by doing so, making it kind of amusing but not the kind of creativity anyone is really interested in.
No it doesn't. Human Go players got worse after playing it. No one learned anything useful. The "knowledge" (if you can call it that) is all contained in an abstract, uninterpretable form that is of no use to anyone.
Solving the game comes before solving for fun. If we create an AI that can win, then we can hamper the AI in fun ways, or give it an altered objective function that maximizes the players fun.
Yes indeed. AI research will only take a real step forward when it learns how to be creative instead of just very good at optimising simple formal systems like board games.