 One of the smallest crosswords in general distribution is a 4×4 crossword compiled daily by John Wilmes, distributed online by "USA Today" as "QuickCross" and by Universal Uclick as "PlayFour".Typically clues appear outside the grid, divided into an Across list and a Down list; the first cell of each entry contains a number referenced by the clue lists.For example, the answer to a clue labeled "17 Down" is entered with the first letter in the cell numbered "17", proceeding down from there.