Word FormationExercise 71 of 110

Of all the games in the world, the jigsaw puzzle has got to be among the most ubiquitous. Yet the history of its origins presents an (0) INTRIGUING (INTRIGUE) puzzle of its own. Officially, the jigsaw puzzle (1) .......... (ORIGIN) in England, and its (2) .......... (INVENT) was John Spilsbury, a London engraver and…