Queenmagic, Kingmagic is a novel by Ian Watson published in 1986.
Queenmagic, Kingmagic is a novel in which the hero and heroine of the story are pawns in a game world involving chess, and travel to worlds of other games.
[1] Dave Langford reviewed Queenmagic, Kingmagic for White Dwarf #83, and stated that "The expected unexpected finale is very Watsonesque.
"[1]