Crossword Maker

About Crossword Puzzles

A crossword is a word game consisting of a grid of black and white squares with numbers on the corners, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter, while the black squares are used to separate entries. The first white square in each entry is typically numbered to correspond to its clue.

Crosswords commonly appear in newspapers and magazines. The earliest crosswords that resemble their modern form were popularized by the New York World in the 1910s. Many variants of crosswords are popular around the world, including cryptic crosswords and many language-specific variants.

Crossword construction in modern times usually involves the use of software. Constructors choose a theme (except for themeless puzzles), place the theme answers in a grid which is usually rotationally symmetric, fill in the rest of the grid, and then write clues.

A person who constructs or solves crosswords is called a "cruciverbalist". The word "cruciverbalist" appears to have been coined in the 1970s from the Latin roots crucis, meaning 'cross', and verbum, meaning 'word'.

American-style crosswords

Crossword grids such as those appearing in most North American newspapers and magazines consist mainly of solid regions of uninterrupted white squares, separated more sparsely by shaded squares. Every letter is "checked" (i.e., is part of both an "across" word and a "down" word) and usually each answer must contain at least three letters. In such puzzles shaded squares are typically limited to about one-sixth of the total. Crossword grids elsewhere, such as in Britain, South Africa, India and Australia, have a lattice-like structure, with a higher percentage of shaded squares (around 25%), leaving about half the letters in an answer unchecked. For example, if the top row has an answer running all the way across, there will often be no across answers in the second row.

Another tradition in puzzle design (in North America, India, and Britain particularly) is that the grid should have 180-degree rotational symmetry, so that its pattern appears the same if the paper is turned upside down. Most puzzle designs also require that all white cells be orthogonally contiguous (that is, connected in one mass through shared sides, to form a single polyomino).

Substantial variants from the usual forms exist. Two of the common ones are barred crosswords, which use bold lines between squares (instead of shaded squares) to separate answers, and circular designs, with answers entered either radially or in concentric circles. "Free form" crosswords ("criss-cross" puzzles), which have simple, asymmetric designs, are often seen on school worksheets, children's menus, and other entertainment for children. Grids forming shapes other than squares are also occasionally used.

Puzzles are often one of several standard sizes. For example, many weekday newspaper puzzles (such as the American New York Times crossword puzzle) are 15×15 squares, while weekend puzzles may be 21×21, 23×23, or 25×25. The New York Times puzzles also set a common pattern for American crosswords by increasing in difficulty throughout the week: their Monday puzzles are the easiest and the puzzles get harder each day until Saturday. Their larger Sunday puzzle is about the same level of difficulty as a weekday-size Thursday puzzle. This has led U.S. solvers to use the day of the week as a shorthand when describing how hard a puzzle is: e.g. an easy puzzle may be referred to as a "Monday" or a "Tuesday", a medium-difficulty puzzle as a "Wednesday", and a truly difficult puzzle as a "Saturday".

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. 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. Some Japanese crosswords are numbered from top to bottom down each column, starting with the leftmost column and proceeding right.

Cryptic crosswords

In cryptic crosswords, the clues are puzzles in themselves. A typical clue contains both a definition at the beginning or end of the clue and wordplay, which provides a way to manufacture the word indicated by the definition, and which may not parse logically. Cryptics usually give the length of their answers in parentheses after the clue, which is especially useful with multi-word answers. Certain signs indicate different forms of wordplay. Solving cryptics is harder to learn than standard crosswords, as learning to interpret the different types of cryptic clues can take some practice. In Great Britain and throughout much of the Commonwealth, cryptics of varying degrees of difficulty are featured in many newspapers.

The first crosswords with strictly cryptic clues appeared in the 1920s, pioneered by Edward Powys Mathers. He established the principle of cryptic crossword clues. Cryptic crossword clues typically consist of a definition and some type of word play. Cryptic crossword clues need to be viewed two ways. One is a surface reading and one a hidden meaning. The surface reading is the basic reading of the clue to look for key words and how those words are constructed in the clue. The second way is the hidden meaning. This can be a double definition, an anagram, a homophone, or words backwards. There are eight main types of clues in cryptic crosswords.

There are several types of wordplay used in cryptics. One is straightforward definition substitution using parts of a word. For example, in one puzzle by Mel Taub, the answer IMPORTANT is given the clue "To bring worker into the country may prove significant". The explanation is that to import means "to bring into the country", the "worker" is a worker ant, and "significant" means important. Here, "significant" is the straight definition (appearing here at the end of the clue), "to bring worker into the country" is the wordplay definition, and "may prove" serves to link the two. Note that in a cryptic clue, there is almost always only one answer that fits both the definition and the wordplay, so that when one sees the answer, one knows that it is the right answer—although it can sometimes be a challenge to figure out why it is the right answer. A good cryptic clue should provide a fair and exact definition of the answer, while at the same time being deliberately misleading.

Another type of wordplay used in cryptics is the use of homophones. For example, the clue "A few, we hear, add up (3)" is the clue for SUM. The straight definition is "add up", meaning "totalize". The solver must guess that "we hear" indicates a homophone, and so a homophone of a synonym of "A few" ("some") is the answer. Other words relating to sound or hearing can be used to signal the presence of a homophone clue (e.g., "aloud", "audibly", "in conversation", etc.).

The double meaning is commonly used as another form of wordplay. For example, "Cat's tongue (7)" is solved by PERSIAN, since this is a type of cat, as well as a tongue, or language. This is the only type of cryptic clue without wordplay—both parts of the clue are a straight definition.

History

The phrase "cross word puzzle" was first written in 1862 by Our Young Folks in the United States. Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. Another crossword puzzle appeared on September 14, 1890, in the Italian magazine Il Secolo Illustrato della Domenica. It was designed by Giuseppe Airoldi and titled "Per passare il tempo" ("To pass the time"). Airoldi's puzzle was a four-by-four grid with no shaded squares; it included horizontal and vertical clues.

Crosswords in England during the 19th century were of an elementary kind, apparently derived from the word square, a group of words arranged so the letters read alike vertically and horizontally, and printed in children's puzzle books and various periodicals.

On December 21, 1913, Arthur Wynne, a journalist born in Liverpool, England, published a "word-cross" puzzle in the New York World that embodied most of the features of the modern genre. This puzzle is frequently cited as the first crossword puzzle, and Wynne as the inventor. An illustrator later reversed the "word-cross" name to "cross-word".

Crossword puzzles became a regular weekly feature in the New York World, and spread to other newspapers; the Pittsburgh Press, for example, was publishing them at least as early as 1916 and The Boston Globe by 1917.

By the 1920s, the crossword phenomenon was starting to attract notice. In October 1922, newspapers published a comic strip by Clare Briggs entitled "Movie of a Man Doing the Cross-Word Puzzle", with an enthusiast muttering "87 across 'Northern Sea Bird'!!??!?!!? Hm-m-m starts with an 'M', second letter is 'U'... I'll look up all the words starting with an 'M-U...' mus-musi-mur-murd—Hot Dog! Here 'tis! Murre!" In 1923 a humorous squib in The Boston Globe has a wife ordering her husband to run out and "rescue the papers... the part I want is blowing down the street." "What is it you're so keen about?" "The Cross-Word Puzzle. Hurry, please, that's a good boy." In The New Yorker inaugural issue, from 1925, the "Jottings About Town" section observed, "Judging from the number of solvers in the subway and 'L' trains, the crossword puzzle bids fair to become a fad with New Yorkers." In 1922, the New York Public Library reported that "The latest craze to strike libraries is the crossword puzzle", and complained that when "the puzzle 'fans' swarm to the dictionaries and encyclopedias so as to drive away readers and students who need these books in their daily work, can there be any doubt of the Library's duty to protect its legitimate readers?"

Construction

In typical themed American-style crosswords, the theme is created first, as a set of symmetric long across answers will be needed around which the grid can be created. Since the grid will typically have 180-degree rotational symmetry, the answers will need to be also: thus a typical 15×15 square American puzzle might have two 15-letter entries and two 13-letter entries that could be arranged appropriately in the grid (e.g., one 15-letter entry in the third row, and the other symmetrically in the 13th row; one 13-letter entry starting in the first square of the 6th row and the other ending in the last square of the 10th row). The theme must not only be funny or interesting, but also internally consistent. In the April 26, 2005 by Sarah Keller mentioned above, the five themed entries contained in the different parts of a tree: SQUAREROOT, TABLELEAF, WARDROBETRUNK, BRAINSTEM, and BANKBRANCH. In this puzzle, CHARTER OAK would not be an appropriate entry, as all the other entries contain different parts of a tree, not the name of a kind of tree. Similarly, FAMILY TREE would not be appropriate unless it were used as a revealer for the theme (frequently clued with a phrase along the lines "... and a hint to..."). Given the existing entries, SEED MONEY would also be unacceptable, as all the other theme entries end in the part of a tree as opposed to beginning with it, though the puzzle could certainly be changed to have a mix of words in different positions.

Once a consistent, appropriate theme has been chosen, a grid is designed around that theme, following a set of basic principles:

Generally, most American puzzles are 15×15 squares; if another size, they typically have an odd number of rows and columns: e.g., 21×21 for "Sunday-size" puzzles; Games magazine will accept 17×17 puzzles, Simon & Schuster accepts both 17×17 and 19×19 puzzles, and The New York Times requires diagramless puzzles to be 17×17. The odd number of squares on a side ensures that achieving symmetry is easier; with even-numbered puzzles the central block of four squares makes constructing a symmetrical puzzle considerably more difficult.

The black squares must be arranged so as to (1) ensure there are no two-letter words; (2) form 180-degree rotational symmetry (so that if the grid is turned upside-down, the pattern of black squares remains the same); (3) ensure that every letter is checked (appears in both an across and a down word); (4) not occupy too much of the puzzle (generally speaking, 16% of the puzzle is considered a rough limit for the percentage of black squares); (5) ensure that the entire puzzle has "all-over interlock"—that is, that the black squares do not "cut" the puzzle into separate sections; and (6) ensure that (generally) no non-theme entry is longer than any of the theme entries. In addition, it is considered advisable to minimize the number of so-called "cheater" black squares, i.e., black squares whose removal would not change the word count of the puzzle but which make it easier to fill by shortening the length of the words therein.

The grid is then filled with suitable words, keeping in mind that (1) no word can be repeated in the grid (with the exception of prepositions or articles); (2) profanity or graphic or "unpleasant" words are generally not allowed; (3) obscurity is strongly discouraged in easy puzzles and should be kept to a minimum in more difficult puzzles, where two obscure words should never be allowed to cross (known in crossword jargon as a "Natick")(and, ideally, where the obscure word would be of interest to most solvers—a genus of little-known water bugs would not be a good choice); (4) uncommon abbreviations and variant foreign spellings should be avoided, as well as the use of crosswordese (those words that no longer appear in common speech but that occur frequently in crosswords due to their favorable letter combinations, such as the Asian buffalo ANOA); (5) in modern puzzles, pop figures and corporate and brand names are generally considered acceptable; (6) no made-up words are permitted—there should be a dictionary or other reference that can cite each entry if asked.

Text adapted from the Wikipedia article “Crossword” (revision 1359762625, 2026-06-17), authors, licensed under CC BY-SA 4.0. Shortened: some sections and paragraphs were left out, and reference markers, images and templates were removed; wording is otherwise unchanged. This text remains available under the same licence.