One of the smallest crosswords in general distribution is a 4×4 crossword compiled daily by John Wilmes, distributed online by USA Today as "Quick Cross" and by Universal Uclick as "Play Four".
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.
This style of grid is also used in several countries other than Sweden, often in magazines, but also in daily newspapers.
The grid often has one or more photos replacing a block of squares as a clue to one or several answers, for example, the name of a pop star, or some kind of rhyme or phrase that can be associated with the photo.
In most American-style crosswords with the remainder being one of the other types described below.
Crossword clues are generally consistent with the solutions.The design of Japanese crossword grids often follows two additional rules: that shaded cells may not share a side (i.e.they may not be orthogonally contiguous) and that the corner squares must be white.Some crossword clues, called straight or quick clues, are simple definitions of the answers.Some clues may feature anagrams, and these are usually explicitly described as such.Some Japanese crosswords are numbered from top to bottom down each column, starting with the leftmost column and proceeding right.Capitalization of answer letters is conventionally ignored; crossword puzzles are typically filled in, and their answer sheets are almost universally published, in all caps, except in the rare cases of ambigrams.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.Numbers are almost never repeated; numbered cells are numbered consecutively, usually from left to right across each row, starting with the top row and proceeding downward.In languages that are written left-to-right, the answer words and phrases are placed in the grid from left to right and from top to bottom.The shaded squares are used to separate the words or phrases.