In chess we have rating points. The rules of Sun Zu apply here too.
Do you mean that rating points are the odds we should have, avoiding people with higher rating?
It would be better if you see this way: attack when you have a clear advantage in the position, avoiding premature attacks.

God forbid that anyone would have a real enemy in this life but if we do we'd want to quantise him. Find a way to put odd's on his strengths. Having legal constraints and social norms in our favour gives us odds.
A one on one conflict is to costly. Two to one divide him. Blind side him or from the back three to one. Never attack unless you have five to one odds. Within a fortress you have nine to one. (Sun Zu)
In chess we have rating points. The rules of Sun Zu apply here too.