So here is the question, pretty specific one.
As anyone knows who can play 象棋, the two generals may never face each other. There either has to be another piece between them or they must be on completely different lines of the board at all times.
As far as game-mechanics are concerned, I know the reason for this rule. It is yet another way to prevent draws.
What I would like to know beyond that is the following:
A) Is there a technical term for that rule? The ‘One-general-may-never-see-the-other-general-rule’ sounds too awkward.
B) Is there also a nice little story behind that rule? Something like “one general may never step into the qi of the other general” or “the generals cast the evil eye”?
Btw, this is for a school project, so if you submit a serious answer, naming your sources is VERY appreciated.
Thanks in advance.