Not sure how this would work if it was a real (physical) board game. How do you un-see the person’s king if it’s on the chessboard? If it’s an electronic game, I think it would be pretty awful. Both chess and Go (but I am more familiar with chess) require a wholistic view of all the pieces all the time, because you need to think 5 – 6— 10 steps ahead. So I think the quality of play would go WAY down, because the players would have no big picture perspective, and would only be able to make short-term, narrow decisions. I don’t think chess would be a better game as a result of that. No more strategy.