School of Arts and Sciences
Riddles and puzzles of various sorts have been with us since the birth of recorded history. We are all familiar with the Riddle of the Sphinx; other word riddles have appeared from time to time in literature and even in grand opera – usually presented as a question whose solution is only available by making a crucial and clever connection. Presenting a number of such riddles in a compact verbally-related form with intricate, sometimes difficult clues, but an ultimately solvable outcome, might be one way to define the modern crossword puzzle.
Orna, M. V. Always a Cross(ed) Word. In A Festival of Chemistry Entertainments; Stocker, J. and Foster, N., Eds.; ACS Symposium Series 1153. American Chemical Society: Washington, DC, 2013; pp. 53-76.