> Is it because its stressful, and demands too much work and prep from participants? The problem is that the world champion is out of play for 6 months out of

> Is it because its stressful, and demands too much work and prep from participants? The problem is that the world champion is out of play for 6 months out of every two years, preparing for just one game. It's boring for him as well as the fans to spend that much time in isolation just trying to memorize everything about one particular opponent. It would be better to have him out and about playing tournaments and beating lots of different opponents.