 Which mode of exposition affects the story’s plot?
It is a game for lunatics—or else it creates them. In crucial situations, say where there's a chance of winning at once by trapping the enemy king, he examines many more moves ahead than that—thirty or forty even. The equivalent of those in the Machine is the directions fed into it before it plays a game." Flesh-and-blood chess masters have lost games by blunders they could have avoided by looking only one or two moves ahead. I have challenged it also to a few games of rapid-transit—an offer no true grandmaster would dare ignore.
 The story uses the Doc character to help paint a portrait of what Sandra cannot understand. Namely, the world of chess.
 The story uses the Doc character to help paint a portrait of what Sandra cannot understand. Namely, the world of chess.  The story uses the chess player characters to help paint a portrait of what Sandra cannot understand. Namely, chess.  The story uses Doc to hide the presence of Dr. Krakatower, the Frenchman responsible for defeating the WBM machines.  The story uses the machine’s astonishing capabilities to distract from the true interest of the story: the human intellect’s ability to conquer computers.