In recent years, many newspapers and other publications have presented irregularly patterned crossword puzzles with a set of somewhat ambiguously worded clues. Provided for each clue are two (or more) possible answer words, usually differing from each other in only one or two letters. The solver's problem is to select the right answer word for each clue, inserting it into the accompanying diagram. Large cash prizes are offered and paid to those who duplicate the puzzle constructor's sometimes erratic line of thinking about the clues, submitting completely correct solutions to the publication featuring the prize puzzles.
Houdini, Merlin X. IV
""With Logic Absolute","
Word Ways: Vol. 14
, Article 14.
Available at: http://digitalcommons.butler.edu/wordways/vol14/iss1/14