What do you mean "the king doesn't see the king"?

Now it is generally considered as an idiom extended from the chess language. The two kings represent the situation that a general and a general will die when they meet in chess.

The meaning is similar to that of two tigers in one mountain. Two people with strong strength in the same field generally don't meet, and when they meet, they will definitely fight to the death. Metaphor means that if two people don't get along, there will be conflicts together.

Extended data:

Ex.: The top leaders of the Kuomintang have a high degree of consensus on cross-strait policies, and there are no differences. Therefore, there is no need to worry that the Kuomintang and the Communist Party will "see the king" for a period of time after Ma Ying IX becomes the party chairman, which will have a negative impact on the development of the two parties and cross-strait relations. ?

References:

Experts say there is no need to worry about the negative impact of the Kuomintang's "king not king" on the two sides of the strait _ Sohu News