White always mates because the better player has opted for the white pieces. But black is free to win if he can. In that its citizens are free to play the game of memory control, of working out the devices of orthodoxy, the Orwellian State bears a direct relation to the one in which English Socialism, not Ingsoc, operates.
-1985 by Anthony Burgess (bolds by me)
The sentence states that the citizens of Orwellian state are free to play two games. One is memory control. The second is "working out the devices of orthodoxy".
I interpret the first game like this: State has a memory control mechanism. It changes history. But citizens are free to remember the "old" history. And they are free to win if they can. (I'm not 100% sure about this reading).
But as to the second game, I can't even give an interpretation. What are the "devices of orthodoxy", how citizens are supposed to work them out, and why this is a game?