I think the best thing that can be done for human vs human chess is to reduce the number of draws.
I think this can be done with a very simple rule change:
In a draw, instead of a both players receiving half a point, one player will randomly receive a full point. The expected value of a draw is still the same (0.5 points per draw) but I think it does change the psychology of it.
That would make most major tournaments almost completely luck based.
It would be interesting to see what happens if draws were only worth a third of a point. Presumably that would encourage one of the players to risk more trying to win.
I think this can be done with a very simple rule change:
In a draw, instead of a both players receiving half a point, one player will randomly receive a full point. The expected value of a draw is still the same (0.5 points per draw) but I think it does change the psychology of it.