Wiktionary
n. One who makes a counterplay.
Usage examples of "counterplayer".
Let us say that on the game board -- our universe in space-time -- the dark counterplayer makes a move.
Evidently some syntheses fall to the dark counterplayer, and yet they do not, by virtue of the fact that, in advance, our great Advocate selected variables, the alteration of which brings final victory to him.
But that malignant power, for all its guile, has already lost even as it wins, for in some way the counterplayer is blind and so the Programmer-Reprogrammer possesses an advantage.
However, I did see the good side making use of it against its will, since the dark counterplayer was blind and therefore could be made use of for good purposes.
This is almost certainly the dialectic that I saw during my March 1974 revelations, and I am willing to admit that it is certainly possible that the blind, dark counterplayer against which the vitalistic good element worked could be "God's own earlier stages," as Driesch viewed it.
The good side possessed absolute wisdom, could therefore absolutely foresee the future, and could lay down moves long in advance of payoffs that the evil, blind, dark counterplayer could not anticipate.