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Crossword



 
 
A crossword is a word puzzle
Puzzle

A puzzle is a problem or enigma that tests the ingenuity of the solver. In a basic puzzle one is intended to piece together objects in a logical way in order to come up with the desired shape, picture or solution....
 that normally takes the form of a square
Square

Square may mean:...
 or rectangular grid
Grid

'Grid' may refer to:In 'entertainment and media':* The Grid * The Grid * Grid , the eighth original album by the Japanese band m.o.v.e.* ...
 of black and white squares. The goal is to fill the white squares with letters, forming words or phrases, by solving clues which lead to the answers. In languages which 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 black squares are used to separate the words or phrases. Squares in which answers begin are usually numbered.






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A crossword is a word puzzle
Puzzle

A puzzle is a problem or enigma that tests the ingenuity of the solver. In a basic puzzle one is intended to piece together objects in a logical way in order to come up with the desired shape, picture or solution....
 that normally takes the form of a square
Square

Square may mean:...
 or rectangular grid
Grid

'Grid' may refer to:In 'entertainment and media':* The Grid * The Grid * Grid , the eighth original album by the Japanese band m.o.v.e.* ...
 of black and white squares. The goal is to fill the white squares with letters, forming words or phrases, by solving clues which lead to the answers. In languages which 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 black squares are used to separate the words or phrases. Squares in which answers begin are usually numbered. The clues are then referred to by these numbers and a direction, for example, "4-Across" or "20-Down". At the end of the clue the total number of letters is sometimes given, depending on the style of puzzle and country of publication. Some crosswords will also indicate the number of words, should there be more than one.

Terminology

The creating of crosswords is called cruciverbalism among its practitioners, who are referred to as cruciverbalists. The terms derive from the Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 for cross and word. Although the terms have existed since the mid 1970s, non-cruciverbalists rarely use them, calling crossword creators constructors or (especially outside the United States) setters. Many puzzle creators in the UK regard this term as affected or pretentious and consider that "compiler" is adequate.

The horizontal and vertical lines of white cells into which answers are written are commonly called entries or answers. The clues are usually called just that, or sometimes definitions. White cells are sometimes called lights, and the black cells are sometimes called darks, blanks, or blocks.

A white cell that is part of two entries (both Across and Down) is called checked, keyed or crossed. A white cell that is part of only one entry is called unchecked, unkeyed or uncrossed.

Types of grid



Crossword grids such as those appearing in most North American newspapers and magazines feature solid areas of white squares. Every letter is checked, and usually each answer is required to contain at least three letters. In such puzzles black squares are traditionally limited to about one-sixth of the design. Crossword grids elsewhere, such as in Britain
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
 and Australia
Australia

Australia, officially the Commonwealth of Australia, is a country in the southern hemisphere comprising the Australia of the world's smallest continent, the major island of Tasmania, and numerous list of islands of Australia in the Indian Ocean and Pacific Oceans....
, have a lattice
Latticework

Latticework is an ornament , lattice framework consisting of a criss-crossed pattern of strips of building material, usually wood or metal, but it can be made of any building material....
-like structure, with a higher percentage of black squares, leaving up to half the letters in an answer unchecked. For example, if the top row has an answer running all the way across, there will be no across answers in the second row.

Another tradition in puzzle design (in North America and Britain particularly) is that the grid should have 180-degree rotational symmetry
Symmetry

Symmetry generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically-pleasing proportionality and balance; such that it reflects beauty or perfection....
, 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
Polyomino

In recreational mathematics, a polyomino is a polyform with the square as its base form. It is a connected space shape formed as the union of one or more identical squares in distinct locations on the plane , taken from the regular square tiling, such that every square can be connected to every other square through a sequence of shared...
).

The design of Japanese crossword grids often follows two additional rules: that black cells may not share a side and that the corner squares must be white.

Substantial variants from the usual forms exist. Two of the common ones are barred crosswords, which use bold lines between squares (instead of black squares) to separate answers, and circular designs, with answers entered either radially or in concentric circles. Free form crosswords have simple designs and are not symmetric. Grids forming shapes other than squares are also occasionally used.

Puzzles are often one of several standard sizes. For example, many weekday puzzles (such as the New York Times crossword) are 15×15 squares, while weekend puzzles may be 21×21, 23×23 or 25×25.

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 labeled 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.

Some crosswords do not number the clues, but have their clues in small print inside grid cells which act as blanks, each clue with a little arrow indicating in which direction from its initial cell the answer is to be written. This kind of crossword originated in Scandinavia and has many different names: "Arrowwords", "Pointers" or "Tipwords" in English, Autodefinidos in Spanish, "Mots Fléchés" in French, etc, and are very popular, often being printed larger than conventional crosswords (to allow adequate space for printing the clues) and are much-used in competitions.

Orthography

Answers are printed in upper case letters. This ensures a proper name
Proper name

"A proper name [is] a word that answers the purpose of showing what thing it is that we are talking about" writes John Stuart Mill in A System of Logic , "but not of telling anything about it"....
 can have its initial capital
Capitalization

Capitalization is writing a word with its first grapheme as a majuscule and the remaining letters in Lower case , in those writing systems which have a letter case....
 letter checked with a non-capitalizable letter in the intersecting clue. Diacritical markings
Diacritic

A diacritic is a small sign added to a letter to alter pronunciation or to distinguish between similar words. The term derives from the Greek language d?a???t???? ....
 in foreign loanword
Loanword

A loanword is a word directly taken into one language from another with little or no translation. By contrast, a calque or loan translation is a related concept whereby it is the Meaning or idiom that is borrowed rather than the lexical item itself....
s are ignored for similar reasons. In languages other than English, the status of diacritics varies according to the orthography of the particular language, thus:

  • in French
    French language

    French is a Romance language spoken around the world by around 80 million people as first language, by 190 million as second language, and by about another 200 million people as an acquired tongue, with significant speakers in 54 countries....
    , in Spanish
    Spanish language

    Spanish or Castilian is a Romance languages that originated in northern Spain, and gradually spread in the Kingdom of Castile and evolved into the principal language of government and trade....
     and in Italian
    Italian language

    Italian is a Romance languages spoken by about 63 million people as a first language, primarily in Italy. In Switzerland, Italian is one of four Linguistic geography of Switzerlands....
    , accent marks and most other diacritical markings are ignored: for instance, in French, the final E of answer ÊTRE can double as the final É of CONGÉ when written ETRE and CONGE;
  • in German language
    German language

    German is a West Germanic languages, thus related to and classified alongside English language and Dutch language. It is one of the world's world language and the most widely spoken mother tongue in the European Union....
     crosswords, the umlauts
    Germanic umlaut

    In linguistics, umlaut is a process whereby a vowel is pronounced more like a vowel or semivowel in a following syllable.The term umlaut was originally coined and is principally used in connection with the study of the Germanic languages....
     ä, ö, and ü are dissolved into ae, oe, and ue, and ß
    ß

    The letter ? is a letter in the German alphabet. Its German language name is Eszett or scharfes S , and is pronounced as an unvoiced s ....
     is dissolved into ss.
  • in Dutch
    Dutch language

    Dutch is a West Germanic languages spoken by over 22 million people as a first language, and about 5 million people as a second language."1% of the EU population claims to speak Dutch well enough in order to have a conversation." Outside the European Union the number of second language speakers of Dutch is very small. Most native...
     crosswords, the ij
    IJ (letter)

    The IJ is the Digraph of the letters i and j. Occurring in the Dutch language, it is sometimes considered a ligature , or even a letter in itselfalthough in most fonts that have a separate character for ij the two composing parts are not connected, but are separate glyphs, sometimes slightly kerning....
     digraph
    Digraph (orthography)

    A digraph, bigraph , or digram is a pair of characters used to write one phoneme or a sequence of phonemes that does not correspond to the normal values of the two characters combined....
     is considered one letter, filling one square, and the IJ and the Y (see Dutch alphabet
    Dutch alphabet

    The Dutch alphabet has 26 letters, five or six of which are vowels. The alphabet used for the Dutch language is the Alphabets derived from the Latin....
    ) are considered distinct. Rules may vary in other word games.
  • in Spanish
    Spanish language

    Spanish or Castilian is a Romance languages that originated in northern Spain, and gradually spread in the Kingdom of Castile and evolved into the principal language of government and trade....
     crosswords, although ch
    Ch (digraph)

    Ch is a digraph in the Roman alphabet. It is treated as a letter of its own in the Chamorro language, Czech alphabet, Slovak language, Quechua, Welsh language, Cornish Language, Breton language and Belarusian language Belarusian Latin alphabet alphabets....
     and ll
    Ll

    Ll/ll is a digraph which occurs in several natural languages....
     were once considered one letter each, they fill two squares.
  • in Czech
    Czech language

    Czech is a West Slavic language with about 12 million native speakers; it is the majority language in the Czech Republic and spoken by Czech people worldwide....
     and Slovak
    Slovak language

    The Slovak language , sometimes incorrectly called ?Slovakian?, is an Indo-European languages that belongs to the West Slavic languages .The Czech and Slovak languages are Mutual intelligibility which means that even after the dissolution of Czechoslovakia Czech may be used in all official proceedings and documents in Slovakia, and vice ver...
    , diacritics are respected and ch
    Ch (digraph)

    Ch is a digraph in the Roman alphabet. It is treated as a letter of its own in the Chamorro language, Czech alphabet, Slovak language, Quechua, Welsh language, Cornish Language, Breton language and Belarusian language Belarusian Latin alphabet alphabets....
     being considered one letter occupies one square.
  • in Romanian
    Romanian language

    Romanian or Daco-Romanian ; self-designation: limba rom?na, ) is a Romance languages spoken by around 24 to 28 million people, primarily in Romania and Moldova....
    , diacritics are ignored.

Types of clues


Straight or quick

In some crosswords, often called straight or quick, the clues are usually simple definitions for the answers. Some clues may feature anagrams, and these are usually explicitly described as such. Often, a straight clue is not in itself sufficient to distinguish between several possible answers (often synonyms), and the solver must make use of checks to establish the correct answer with certainty.

Crossword clues should be consistent with the solutions. For instance clues and their solutions should always agree in tense and number. If a clue is in the past tense, so is the answer: thus "Traveled on horseback" would be a valid clue for the solution "rode", but not for "ride". Similarly, "Family members" would be a valid clue for "aunts" but not "uncle". Some clue examples:
  • Fill-in-the-blank clues are often the easiest in a puzzle, and a good place to start solving, e.g., "__ Boleyn
    Anne Boleyn

    Anne Boleyn was List of English consorts as the Wives of Henry VIII of Henry VIII of England. She was also Earl of Pembroke in her own right. Henry's marriage to Anne, and her subsequent execution, made her a key figure in the political and religious upheaval that was the start of the English Reformation....
    "
    = Anne
  • A question mark at the end of clue usually signals that the clue/answer combination involves some sort of pun, e.g., "Grateful?" = ashes (since a grate might be full of them).
  • Most widely distributed American crosswords today (e.g., The New York Times
    The New York Times

    The New York Times is an American daily newspaper published in New York City. The largest metropolitan newspaper in the United States, "The Gray Lady"?named for its staid appearance and style?is regarded as a national newspaper of record....
    , Washington Post, Boston Globe, USA Today
    USA Today

    'USA TODAY' is a national United States daily newspaper published by the Gannett Company. It was founded by Allen Neuharth. The paper has the widest newspaper circulation of any newspaper in the United States , and among English-language broadsheets, it comes second worldwide, behind only the 2.6 million daily paid copies of The Times of...
    ,
    etc.) also contain colloquial answers, i.e., entries in the puzzle grid that try to replicate everyday colloquial language. In such a puzzle, one might see phrases such as WHAT'S UP, AS IF, or WHADDYA WANT.


In the hands of any but the most skilled compilers, the constraints of the American-style grid (in which every letter is checked) usually require a fair number of lights not to be dictionary words. As a result the following ways to clue abbreviations and other non-words, although they can be found in "straight" British crosswords, are much more common in American ones:
  • Abbreviations, use of foreign language, variant spellings, or other unusual word tricks are indicated in the clue. A crossword creator might choose to clue the answer SEN (as in the abbreviation for "Senator") as "Washington bigwig: Abbr." or "Member of Cong.", with the abbreviation in the clue indicating that the answer is to be similarly abbreviated. The use of "Var." indicates the answer is a variant spelling (e.g., EMEER instead of EMIR), while the use of foreign language or a foreign place name within the clue indicates that the answer is also in a foreign language. For example, ETE (French for "summer") might be clued as "Summer, in the Sorbonne
    Sorbonne

    The name Sorbonne is commonly used to refer to the historic University of Paris in Paris, France or one of its successor institutions , but this is a recent usage, and "Sorbonne" has actually been used with different meanings over the centuries....
    "
    while ROMA
    Rome

    Rome is the capital city of Italy and Lazio, and is Italy's largest and most populous city, with 2,724,347 residents in an urban area of some ....
     could be clued as "Italia
    Italy

    Italy , officially the Italian Republic , is a country located on the Italian Peninsula in Southern Europe and on the two largest islands in the Mediterranean Sea, Sicily and Sardinia....
    's capital."
  • The clue "PC key" for a three-letter answer could be ESC, ALT, TAB, or even DEL, but until a check is filled in, giving at least one of the letters, the correct answer cannot be determined.
  • A common clue is "Compass
    Compass

    A compass, magnetic compass or mariner's compass is a navigational instrument for determining direction relative to the earth's magnetic poles....
     point"
    , where the desired answer is one of eight possible abbreviations for a position on a compass, e.g. NNW (for north-northwest) or ESE (for east-southeast). The desired answer is determined by a combination of logic
    Logic

    Logic is the study of the principles of valid demonstration and inference. Logic is a branch of philosophy, a part of the classical Trivium . The word derives from Greek language ?????? , fem....
     — since the third letter can be only E or W, and the second letter can be only N or S — and a process of elimination using checks. Alternatively, compass point answers are often clued as "XXX to YYY direction", where XXX and YYY are two place names. For example, SSW might be clued as "New York to Washington dir." Similarly, a clue such as "right (or left, etc.) on the map" means east.


Crossword themes

Many American crossword puzzles contain a "theme" consisting of a number of long entries (generally three to five in a standard 15x15-square "weekday"-size puzzle) that share some relationship, type of pun, or other element in common. As an example, the New York Times crossword of April 26 2005 by Sarah Keller, edited by Will Shortz
Will Shortz

Will Shortz is an United States puzzle creator and editor....
, featured five theme entries ending in the different parts of a tree:

SQUAREROOT

TABLELEAF

WARDROBETRUNK

BRAINSTEM

BANKBRANCH

The above is an example of a category theme, where the theme elements are all members of the same set. Other types of themes include quote themes, featuring a famous quote broken up into parts to fit in the grid (and usually clued as "Quote, part 1", "Quote, part 2", etc.); rebus themes, where multiple letters or even symbols occupy a single square in the puzzle (e.g., BERMUDA?); pun-based themes (perhaps the most common), where all the answers are similar puns; commemorative themes, based on a particular event or person (often published on an appropriate anniversary); and other less common types.

The Simon & Schuster Crossword Puzzle Series has published many unusual themed crosswords. "Rosetta Stone" by Sam Bellotto Jr., incorporated a Caesar Cipher cryptogram as the theme; the key to breaking the cipher was the answer to 1 Across. Another unusual theme required the solver to use the answer to a clue as another clue. The answer to that clue was the real solution.

The first entries

In the 'Quick' crossword in the Daily Telegraph newspaper (Sunday and Daily, UK
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
), it has become a convention also to make the first few words (usually two or three, but can be more) into a phrase. For example, "Dimmer, Allies" would make "Demoralise" or "You, ill, never, walk, alone" would become "You'll never walk alone". This generally aids the solver in that if they have one of the words then they can attempt to guess the phrase. This has also become popular among other British
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
 newspapers.

Indirect clues

In many puzzles, some clues are to be taken metaphorically or in some sense other than their literal meaning, or require some form of lateral thinking. Depending on the puzzle creator or the editor, this might be represented either with a question mark at the end of the clue or with a modifier such as "maybe" or "perhaps". Examples:

  • The clue "Half a dance?" for a three-letter answer: CAN (half of CANCAN) or CHA (half of CHACHA).
  • The clue "Nice summer?" for: ETE, summer in Nice (France), not a nice (=pleasant) summer.
  • The clue "Pay addition, perhaps", without the modifier might be something akin to "BONUS". However, with the modifier, the answer could be "OLA" (the addition of OLA to PAY is the word PAYOLA).


Cryptic crosswords

In cryptic crosswords, often called cryptics, the clues are puzzles in themselves. A typical clue contains a definition at the beginning or end of the clue, and wordplay, which describes the word indicated by the definition, and which may not parse logically, but should be grammatical. Cryptics usually give the length of their answers in parentheses after the clue. Certain signs indicate different wordplay. Cryptics have a longer "learning curve" than standard crosswords as learning to interpret the different types of cryptic clues can take some practice. In Great Britain
Great Britain

Great Britain is an island lying to the northwest of Continental Europe. It is the List of islands by area, and the largest in Europe. With a population of 58.9 million people it is List of islands by population....
 and throughout much of the Commonwealth, cryptics of varying degrees of difficulty are featured in many newspapers.

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." Note that in a cryptic clue, there is almost always only one answer that fits both the definition and the wordplay, so that when you see the answer, you know 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. It is the setter's challenge to mean what he says without necessarily saying what he means - a quandary familiar to those who have enjoyed the writings of Lewis Carroll.

Another type of wordplay used in cryptics is homophone
Homophone

A homophone is a word that is pronounced the same as another word but differs in meaning. The words may be spelled the same, such as rose and rose , or differently, such as Carat , caret, and carrot, or to, two and too....
s. For example, the clue "A few, we hear, add up (3)" is solved by SUM. The definition is "add up", meaning "totalize". The solver must guess that "we hear" indicates a homophone
Homophone

A homophone is a word that is pronounced the same as another word but differs in meaning. The words may be spelled the same, such as rose and rose , or differently, such as Carat , caret, and carrot, or to, two and too....
, and so a homophone of a synonym of "A few" ("SOME") is the answer.

Another wordplay commonly used is the double meaning. For example, "Cat's tongue (7)" is solved by PERSIAN, since this is a type of cat, as well as a tongue, or language.

Cryptics very often include anagram
Anagram

An anagram is a type of word play, the result of rearranging the letters of a word or phrase to produce a new word or phrase, using all the original letters exactly once; e.g., orchestra = carthorse, Eleven plus two = Twelve plus one, A decimal point = I'm a dot in place....
s. The clue "Ned T.'s seal cooked is rather bland (5,4)" is solved by NEEDS SALT. The meaning is "is rather bland", and the word "cooked" is a hint to the solver that this clue is an anagram (the letters have been "cooked", or jumbled up). "Nedtsseal" (ignoring all punctuation, of course) is an anagram for NEEDS SALT. Besides "cooked", other common hints that the clue contains an anagram are words such as "scrambled", "mixed up", "confused", "baked" or "twisted". In answer sheets, an anagram is commonly indicated by an asterisk.

Embedded words are another common trick in cryptics. The clue "Bigotry aside, I'd take him (9)" is solved by APARTHEID. The meaning is "bigotry", and the wordplay explains itself, indicated subtly by the word "take" (since one word "takes" another): "aside" means APART and I'd is simply ID, so APART and ID "take" HE (which is, in cryptic crossword usage, a perfectly good synonym for "him"). The answer could be elucidated as APART(HE)ID.

There is the oft-used hidden clue, where the answer is hidden in the text of the clue itself. For example, "Made a dug-out, buried, and passed away (4)" is solved by DEAD. The answer is written in the clue: "maDE A Dug-out". "Buried" indicates that the answer is embedded within the clue.

There is no end to the wordplay found in cryptic clues. Backwards words can be indicated by words like "climbing", "retreating", or "ascending" (depending on whether it is an across clue or a down clue); letters can be replaced or removed with indicators such as "nothing rather than excellence" (meaning replace E in a word with O); the letter I can be indicated by "me" or "one;" the letter O can be indicated by "nought" or "a ring" (since it visually resembles one); the letter X might be clued as "a cross", or "ten" (as in the Roman numeral), or "an illiterate's signature", or "sounds like your old flame" (homophone for "ex"). "Senselessness" is solved by "e", because "e" is what remains after removing (less) "ness" from "sense".

With the different types of wordplay and definition possibilities, the composer of a cryptic puzzle is presented with many different possible ways to clue a given answer. Most desirable are clues that are clean but deceptive, with a smooth surface reading (that is, the resulting clue looks as natural a phrase as possible). The Usenet
Usenet

Usenet, a portmanteau of "user" and "network", is a worldwide distributed Internet discussion system. It evolved from the general purpose UUCP architecture of the same name....
 newsgroup rec.puzzles.crosswords has a number of clueing competitions where contestants all submit clues for the same word and a judge picks the best one.

In principle, each cryptic clue is usually sufficient to define its answer uniquely, so it should be possible to answer each clue without use of the grid. In practice, the use of checks is an important aid to the solver. (Cryptic crosswords are not to be confused with cryptogram
Cryptogram

A cryptogram is a type of puzzle which consists of a short piece of encryption text. Generally the cipher used to encrypt the text is simple enough that cryptogram can be solved by hand....
s, a different form of puzzle based on a substitution cipher
Substitution cipher

In cryptography, a substitution cipher is a method of encryption by which units of plaintext are replaced with ciphertext according to a regular system; the "units" may be single letters , pairs of letters, triplets of letters, mixtures of the above, and so forth....
.)

Double clue lists

Sometimes newspapers publish one grid that can be filled by solving either of two lists of clues - usually a straight and a cryptic. The solutions given by the two lists may be different, in which case the solver must decide at the outset which list they are going to follow, or the solutions may be identical, in which case the straight clues offer additional help for a solver having difficulty with the cryptic clues. For example, the solution APARTHEID might be clued as "Bigotry aside, I'd take him (9)" in the cryptic list, and "Racial separation (9)" in the straight list. Usually the straight clue matches the straight part of the cryptic clue, but this is not necessarily the case.

Every issue of GAMES Magazine
GAMES Magazine

Games magazine is a United States-based magazine devoted to games and puzzles, and is published by Games Publications, a division of Kappa Publishing Group....
 contains a large crossword with a double clue list, under the title The World's Most Ornery Crossword; both lists are straight and arrive at the same solution, but one list is significantly more challenging than the other. The solver is prompted to fold a page in half, showing the grid and the hard clues; the easy clues are tucked inside the fold, to be referenced if the solver gets stuck.

A variant of the double-clue list is commonly called Siamese Twins: two matching grids are provided, and the two clue lists are merged together such that the two clues for each entry are displayed together in random order. Determining which clue is to be applied to which grid is part of the puzzle.

Other clue variations

Any type of puzzle may contain cross-references, where the answer to one clue forms part of another clue, in which it is referred to by number.

When an answer is composed of multiple or hyphenated words, some crosswords (especially in Britain) indicate the structure of the answer. For example, "(3,5)" after a clue indicates that the answer is composed of a three-letter word followed by a five-letter word.

Example

Here is a small example of a regular crossword, to illustrate the format:

Across

1. Sheep sound (3)
3. Neither liquid nor gas (5)
5. Humour (3)

Down

1. Road passenger transport (3)
2. Permit (5)
4. Shortened form of Dorothy (3)

The solution to this crossword is:

A set of cryptic clues that provide the same answers as above might be:

Across

1. Start of announcement by British Airways sounds woolly? (3)
3. I sold out for real (5)
5. Wilde's intelligence (3)

Down

1. Ferry sees submarine rising (3)
2. Now without its initial after every warrant (5)
4. Do time? There's a point (3)

How the clues work:

Across
  • 1. start of announcement = A; by = next to; British Airways = BA. Result is BA+A = BAA (which 'sounds woolly', i.e. is the sound of a sheep).
  • 3. 'out' commonly implies an anagram (as in turned out). An anagram of I SOLD = SOLID, which means real.
  • 5. Double-definition: (Oscar) Wilde was a famous wit
    WIT

    WIT is:* The ticker symbol for Wipro Technologies, India.* The timezone Waktu Indonesia Timur, covering Time_in_Indonesia* National Women's Register - A Women's discussion group in Zimbabwe...
    , and intelligence=wit. "Wilde's" in this case is a contraction of "Wilde is", and not a possessive.


Down
  • 1. submarine = SUB; rising = backwards (in view of this being a Down clue). Result is BUS, as a verb, meaning to ferry.
  • 2. Now without its initial = OW; after = following; every = ALL. Result = ALL+OW = ALLOW, meaning to warrant.
  • 4. Do = DO; time = T. Result = DO+T = DOT, meaning a point.


Major crossword variants

These are common crossword variants that vary more from a regular crossword than just an unusual grid shape or unusual clues; these crossword variants may be based on different solving principles and require a different solving skill set.

Cipher crosswords

Published under various trade names (including Code Breakers, Code Crackers, and Kaidoku), and not to be confused with cryptic crosswords (ciphertext puzzles are commonly known as cryptogram
Cryptogram

A cryptogram is a type of puzzle which consists of a short piece of encryption text. Generally the cipher used to encrypt the text is simple enough that cryptogram can be solved by hand....
s), a cipher crossword replaces the clues for each entry with clues for each white cell of the grid - a number integer from 1 to 26 inclusive is printed in the corner of each. The objective, as any other crossword, is to determine the proper letter for each cell; in a cipher crossword, the 26 numbers serve as a cipher
Cipher

In cryptography, a cipher is an algorithm for performing encryption and decryption — a series of well-defined steps that can be followed as a procedure....
 for those letters: cells that share matching numbers are filled with matching letters, and no two numbers stand for the same letter. All resultant entries must be valid words. Usually, at least one number's letter is given at the outset. English-language cipher crosswords are nearly always pangram
Pangram

A pangram , or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Pangrams are used to display typefaces and test equipment....
matic (all letters of the alphabet appear in the solution). As these puzzles are closer to codes than quizzes, they require a different skillset; many basic cryptographic techniques, such as determining likely vowels, are key to solving these. Given their pangrammaticity, a frequent start point is locating where 'Q' and 'U' must appear.

Diagramless crosswords

In a diagramless crossword, often called a diagramless for short or, in the UK
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, a skeleton crossword or carte blanche, the grid offers overall dimensions, but the locations of most of the clue numbers and black squares are unspecified. A solver must deduce not only the answers to individual clues, but how to fit together partially built-up clumps of answers into larger clumps with properly-set black squares. Some of these puzzles follow the traditional symmetry rule, others have left-right mirror symmetry, and others have greater levels of symmetry or outlines suggesting other shapes. If the symmetry of the grid is given, the solver can use it to his/her advantage.

A variation is the Blankout puzzle in the Daily Mail
Daily Mail

The Daily Mail is a United Kingdom newspaper, currently published in a tabloid format. First published in 1896 by Alfred Harmsworth, 1st Viscount Northcliffe, it is the United Kingdom's second biggest-selling daily newspaper after The Sun ....
 Weekend
magazine. The clues are not individually numbered, but given in terms of the rows and columns of the grid, which has rectangular symmetry. The list of clues gives hints of the locations of some of the black squares even before one starts solving them, e.g. there must be a black square where a row having no clues intersects a column having no clues.

Fill-in crosswords

A fill-in crossword (also known as crusadex or cruzadex) features a grid and the full list of words to be entered in that grid, but does not give explicit clues for where each word goes. The challenge is figuring out how to integrate the list of words together within the grid so that all intersections of words are valid. Fill-in crosswords may often have longer word length than regular crosswords to make the crossword easier to solve, and symmetry is often disregarded. Fitting together several long words is easier than fitting together several short words because there are fewer possibilities for how the long words intersect together.

Crossnumbers

A crossnumber (also known as a cross-figure
Cross-figure

A cross-figure is a puzzle similar to a crossword in structure, but with entries which consist of numbers rather than words, with individual digits being entered in the blank cells....
) is the numerical analogy of a crossword, in which the solutions to the clues are numbers instead of words. Clues are usually arithmetic
Arithmetic

Arithmetic or arithmetics is the oldest and most elementary branch of mathematics, used by almost everyone, for tasks ranging from simple day-to-day counting to advanced science and business calculations....
al expressions, but can also be general knowledge clues to which the answer is a number or year. There are also numerical fill-in crosswords.

The Daily Mail
Daily Mail

The Daily Mail is a United Kingdom newspaper, currently published in a tabloid format. First published in 1896 by Alfred Harmsworth, 1st Viscount Northcliffe, it is the United Kingdom's second biggest-selling daily newspaper after The Sun ....
 Weekend
magazine used to feature crossnumbers under the misnomer Number Word. This kind of puzzle should not be confused with a different puzzle that the Daily Mail refers to as Cross Number.

History

On December 21, 1913, Arthur Wynne
Arthur Wynne

Arthur Wynne , born Liverpool, England, was a United Kingdom editor and puzzle constructor in his home country and the United States. After coming to the United States, he was a resident of Cedar Grove, New Jersey....
, a journalist
Journalist

A journalist is a person who practices journalism, the gathering and dissemination of information about current events, trends, issues, and people while striving for viewpoints that aren't biased....
 from Liverpool
Liverpool

Liverpool [] is a city and metropolitan borough of Merseyside, England, along the eastern side of the Mersey Estuary. It was founded as a History of borough status in England and Wales in 1207 and was granted City status in the United Kingdom in 1880....
, England
England

native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
, published a "word-cross" puzzle in the New York World
New York World

The New York World was a newspaper published in New York from 1860 until 1931. It played a major role in the history of American newspapers....
 that embodied most of the features of the genre as we know it. This puzzle is frequently cited as the first crossword puzzle, and Wynne as the inventor. Later, the name of the puzzle was changed to "crossword."

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

By the 1920s, the crossword phenomenon was starting to attract notice. In 1921, the New York Public Library
New York Public Library

The New York Public Library is one of the leading Public library of the world and is one of the United States's most significant research libraries....
 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?" In October 1922, newspapers published a comic strip by Clare Briggs
Clare Briggs

File:Danny Dreamer.jpgClare A. Briggs was an early American comic strip artist who rose to fame in 1904 with his strip A. Piker Clerk.Growing up, Briggs lived in Reedsburg until 1884 when his parents moved to Dixon, Illinois, eventually settling in Lincoln, Nebraska....
 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."

The first book of crossword puzzles appeared in 1924, published by Simon and Schuster. "This odd-looking book with a pencil attached to it" was an instant hit and crossword puzzles became the craze of 1924.

Initially, some viewed the crossword puzzle with alarm, and some expected (even hoped) that it would be a short-lived fad. In 1924, The New York Times complained of the "sinful waste in the utterly futile finding of words the letters of which will fit into a prearranged pattern, more or less complex. This is not a game at all, and it hardly can be called a sport... [solvers] get nothing out of it except a primitive form of mental exercise, and success or failure in any given attempt is equally irrelevant to mental development." A clergyman called the working of crossword puzzles "the mark of a childish mentality" and said "There is no use for persons to pretend that working one of the puzzles carries any intellectual value with it.". In 1925 Time Magazine noted that nine Manhattan dailies and fourteen other big newspapers were carrying crosswords, and quoted opposing views as to whether "This crossword craze will positively end by June!" or "The crossword puzzle is here to stay!" In 1925 the Times noted, with approval, a scathing critique of crosswords by The New Republic
The New Republic

The New Republic is an United States magazine of politics and the arts. It is published semimonthly and has a circulation of approximately 60,000....
; but concluded that "Fortunately, the question of whether the puzzles are beneficial or harmful is in no urgent need of an answer. The craze evidently is dying out fast and in a few months it will be forgotten." and in 1929 declared "The cross-word puzzle, it seems, has gone the way of all fads...." In 1930 a correspondent noted that "Together with The Times of London, yours is the only journal of prominence that has never succumbed to the lure of the cross-word puzzle" and said that "The craze—the fad—stage has passed, but there are still people numbering it to the millions who look for their daily cross-word puzzle as regularly as for the weather predictions." The Times, however, was not to publish a crossword puzzle until 1942.

The term crossword first appeared in a dictionary in 1930.

Today, there are many popular crosswords distributed in American newspapers and online. The most prestigious (and among the most difficult to solve) are the New York Times puzzles. The first editor of the New York Times crossword was Margaret Farrar
Margaret Farrar

Margaret Petherbridge Farrar was an United States journalist and the first crossword puzzle editor for the New York Times, from 1942 to 1968....
, who was editor from 1942 to 1969. She was succeeded by Will Weng
Will Weng

Will Weng was an United States journalist and crossword puzzle constructor who served as crossword puzzle editor for New York Times from 1969-1977....
, who was succeeded by Eugene T. Maleska. Since 1993, they have been edited by Will Shortz
Will Shortz

Will Shortz is an United States puzzle creator and editor....
, the fourth crossword editor in Times. In 1978 Shortz founded and still directs the annual American Crossword Puzzle Tournament
American Crossword Puzzle Tournament

The American Crossword Puzzle Tournament is an annual crossword-solving tournament held every March. Founded in 1978 by Will Shortz, who still directs the tournament, it is the oldest and largest crossword tournament held in the United States; the 2008 event attracted nearly 700 competitors....
.

Simon and Schuster continues to publish the Crossword Series books that it began in 1924, currently under the editorship of John M. Samson.

The British cryptic crossword was imported to the US in 1968 by composer and lyricist Stephen Sondheim
Stephen Sondheim

Stephen Joshua Sondheim is an American composer and lyricist for theatre and film, winner of an Academy Award, multiple Tony Awards and the Special Tony Award for Lifetime Achievement in the Theatre, multiple Grammy Awards, and a Pulitzer Prize....
 in New York magazine
New York (magazine)

New York is a weekly magazine concerned with the life, culture, politics, and style of New York City. Founded by Milton Glaser and Clay Felker in 1968 as a competitor to The New Yorker, it offers less national news and more gossipy, tabloid-like stories, but has also published noteworthy articles on city and state politics and cultur...
. Until 2006, the Atlantic Monthly regularly featured a cryptic crossword "puzzler" by Emily Cox
Emily Cox (compiler)

Emily Cox is a US puzzle writer. She and her partner, Henry Rathvon, have written "The Atlantic Puzzler," a cryptic crossword featured each month in the magazine The Atlantic Monthly since 1977....
 and Henry Rathvon
Henry Rathvon

Henry Rathvon is a puzzle writer. He and his partner, Emily Cox , write The Atlantic Puzzler, a cryptic crossword crossword featured each month in the magazine The Atlantic Monthly since 1977....
, which combines cryptic clues with diabolically ingenious variations on the construction of the puzzle itself. In both cases, no two puzzles are alike in construction, and the intent of the puzzle authors is to entertain with novelty, not to establish new variations of the crossword genre.

In the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, the Sunday Express was the first newspaper to publish a crossword on November 2 1924, a Wynne puzzle adapted for the UK. The first crossword in Britain, according to Tony Augarde in his "Oxford Guide to Word Games" (1984), was in "Pearson's Magazine" for February 1922.

Crossword puzzles in World War II

In 1944 Allied security officers were disturbed by the appearance, in a series of crosswords in The Daily Telegraph, of words that were secret code names for military operations planned as part of Operation Overlord
Operation Overlord

Operation Overlord was the code name for the invasion of Western Front during World War II by Western Allies forces. The operation began with the Normandy Landings on 6 June 1944 , among the largest amphibious warfares ever conducted....
. "Utah" (the code name for one of the landing sites) appeared in a puzzle on May 2 1944. Subsequent puzzles included the landing site "Omaha" and "Mulberry"; the secret artificial harbours.

On June 2, four days before the invasion, the puzzle included both "Neptune" (the naval operations plan) and "Overlord
Battle of Normandy

The Invasion of Normandy was the invasion and establishment of Western Allies forces in Normandy, France, during Operation Overlord in World War II....
". The author of the puzzles, a schoolteacher named Leonard Dawe, was interviewed and interrogated. The investigators concluded that the appearance of the words was a coincidence, as a result of stationed troops in the region mentioning the phrases in passing, which Dawe's schoolchildren repeated. The event has been described in histories, and has been used as an illustration of how seemingly meaningful events can arise out of pure coincidence.

According to National Geographic, in 1984 a former student of Dawe's claimed that he had picked up the words while eavesdropping on soldiers' conversations around the army camps and suggested them to Dawe to use in puzzles. This assertion has not been independently verified, and Marc Romano, author of the book Crossworld: One Man's Journey into America's Crossword Obsession, gives a number of reasons for why the story is implausible.

Cryptologists for Bletchley Park
Bletchley Park

Bletchley Park, also known as Station X, is an estate located in the town of Bletchley, in Buckinghamshire. Since 1967, Bletchley has been part of Milton Keynes, England....
 were selected, among other means, by timed cryptic crosswords.

Record holder

According to Guinness Records, 15 May 2007, the most prolific crossword compiler is Roger Squires
Roger Squires

Roger Squires is a British crossword compiler, living in Ironbridge, Shropshire, who is best known for being the world's most prolific compiler ....
 of Ironbridge
Ironbridge

Ironbridge is a settlement on the River Severn, at the heart of the Ironbridge Gorge in Telford, Shropshire, England. It lies in the parish of Ironbridge Gorge, in the borough of Telford and Wrekin....
, Shropshire
Shropshire

Shropshire , alternatively known as Salop or abbreviated, in print only, Shrops, is a Counties of England in the West Midlands of England....
, UK. On 14 May 2007 he published his 66,666th crossword, equivalent to 2 million clues. He is one of only four setters to have provided cryptic puzzles to The Times
The Times

The Times is a daily national newspaper published in the United Kingdom since 1785 when it was known as The Daily Universal Register.The Times and its sister paper The Sunday Times are published by Times Newspapers Limited, a subsidiary of News International....
, The Daily Telegraph
The Daily Telegraph

The Daily Telegraph is a British broadsheet newspaper, founded in 1855. Excepting the Financial Times and The Herald , it is the only remaining national daily newspaper printed on traditional newsprint in the broadsheet format in the United Kingdom, as most other broadsheet publications have converted to the smaller tabloid/Compa...
, The Guardian
The Guardian

Sorry, no overview for this topic
, the Financial Times
Financial Times

The Financial Times is a United Kingdom international business newspaper. It is a morning daily newspaper published in London and is printed at 24 sites....
 and The Independent
The Independent

The Independent is a United Kingdom Compact newspaper published by Tony O'Reilly's Independent News & Media. It is nicknamed the Indy, with the Sunday edition, The Independent on Sunday, being the Sindy....
. He also holds the record for the longest word ever used in a published crossword - the 58-letter Welsh town Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch clued as an anagram.

Crosswords in non-English languages

Although the crossword is an English-language invention and most common in English-speaking countries, other countries have crosswords in their respective languages.

French-language crosswords are smaller than English-language ones, and not necessarily square: usually 8–13 rows and columns, totaling 81–130 squares. They need not be symmetric and two-letter words are allowed, unlike in most English-language puzzles. Compilers strive to minimize use of black squares. 10% is typical; Georges Perec
Georges Perec

Georges Perec was a highly-regarded France Judaism novelist, filmmaker and essayist. He was a member of the Oulipo group....
 compiled many 9×9 grids for Le Point
Le Point

Le Point is a France weekly news magazine. It was founded in 1972 by a group of journalists who had, one year earlier, left the editorial team of L'Express , which was then owned by Jean-Jacques Servan-Schreiber, a d?put? of the Radical Party ....
 with four or even three . Rather than numbering the individual clues, the rows and columns are numbered as on a chessboard
Chessboard

A chessboard is the type of checkerboard used in the game of chess, and consists of 64 squares arranged in two alternating colors . The colors are called "black" and "white" , although the actual colors are usually dark green and buff for boards used in competition, and often natural shades of light and dark woods for home boards....
. All clues for a given row or column are listed, against its number, as separate sentences. This is similar to the notation used in the aforementioned Daily Mail
Daily Mail

The Daily Mail is a United Kingdom newspaper, currently published in a tabloid format. First published in 1896 by Alfred Harmsworth, 1st Viscount Northcliffe, it is the United Kingdom's second biggest-selling daily newspaper after The Sun ....
 Blankout
puzzles.

In Italy
Italy

Italy , officially the Italian Republic , is a country located on the Italian Peninsula in Southern Europe and on the two largest islands in the Mediterranean Sea, Sicily and Sardinia....
, crosswords are usually oblong and larger than French ones, 13x21 being a common size. As in France
France

France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....
, they usually are not symmetrical; two-letter words are allowed; and the number of black squares is minimized. Nouns (including surnames) and the infinitive or past participle of verbs are allowed, as are abbreviations; in larger crosswords, it is customary to put at the center of the grid phrases made of two to four words, or forenames and surnames. A variant of Italian crosswords does not use black squares: words are delimited by thickening the grid. Another variant starts with a blank grid: the solver must insert both the answers and the black squares, and Across and Down clues are ordered by row and column.

Particularly curious is the Japanese language
Japanese language

IPA: [n?iho?go] is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is related to the Ryukyuan languages....
 crossword; due to the writing system, one syllable (typically katakana
Katakana

is a Japanese language syllabary, one component of the Japanese writing system along with hiragana, kanji, and in some cases the Latin alphabet. The word katakana means "fragmentary kana", as the katakana scripts are derived from components of more complex kanji....
) is entered into each white cell of the grid rather than one letter, resulting in the typical solving grid seeming rather small in comparison to those of other languages. Any second Yoon
Yoon

is a feature of the Japanese language in which a mora is formed with an added palatal approximant sound.Yoon are represented in hiragana using a kana ending in i, such as ? , plus a smaller-than-usual version of one of the three y kana, ya, yu or yo....
 character is treated as a full syllable and is rarely written with a smaller character. Even cipher crosswords have a Japanese equivalent, although pangrammaticity does not apply. The crossword with kanji
Kanji

are the Chinese characters that are used in the modern Japanese language logogram along with hiragana , katakana , Arabic numerals, and the occasional use of the Latin alphabet....
 to fill in are also produced, but in far smaller number as it takes far more effort to construct one. Despite having three writing forms, hiragana
Hiragana

is a Japanese language syllabary, one component of the Japanese writing system, along with katakana, kanji, and the romanization of Japanese. Hiragana and katakana are both kana systems, in which each symbol represents one mora ....
, katakana and kanji, they are rarely mixed in a crossword puzzle.

In Poland
Poland

Poland , officially the Republic of Poland , is a country in Central Europe. Poland is bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian Enclave and exclave, to the north....
, crosswords typically use British-style grids, but some do not have black cells. Black cells are often replaced by boxes with clues - such crosswords are called Swedish puzzles or Swedish-style crosswords. In a vast majority of Polish crosswords, nouns are the only allowed words.

Modern Hebrew is normally written with only the consonants; vowels are either understood, or entered as diacritical marks. This can lead to ambiguities in the entry of some words, and compilers generally specify that answers are to be entered in "ktav male" ("full spelling, ie with vowels) or "ktav haser" ("deficient spelling", without vowels). Further, since Hebrew is written from right to left, but Roman numerals are used and written from left to right, there can be an ambiguity in the description of lengths of entries, particularly for multi-word phrases. Different compilers and publications use differing conventions for both of these issues.

In India
India

India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....
 A.N.Prahlada Rao from Bangalore
Bangalore

Bangalore , officially Bengaluru , is the capital of the Indian States and territories of India of Karnataka. Located on the Deccan Plateau in the south-eastern part of Karnataka, Bangalore is India's List of most populous cities in India and List of most populous metropolitan areas in India....
 has composed 20,000 crossword puzzles in Kannada
Kannada language

Kannada is one of the major Dravidian languages of India, spoken predominantly in the state of Karnataka. Kannada, whose native speakers are called Kannadigas , number roughly 35 million, making it the 27th most spoken language in the world....
, including 5,000 crosswords based on Kannada films. He has contributed crosswords about 24 periodicals including 3 dailies. He has created crosswords in General, Film, Mythology, Crime, Food and also clues based on Kannada Novels of famous writers.The first-ever 5 volumes of Kannada crossword puzzles compiled by A.N. Prahlad Rao has been launched in February 2008.

Notation

A notation has evolved to allow crosswords to be rendered compactly, and enjoyed by the blind
Blindness

Blindness is the condition of lacking visual perception due to physiological or neurological factors.Various scales have been developed to describe the extent of vision loss and define "blindness." Total blindness is the complete lack of form and visual light perception and is clinically recorded as "NLP," an abbreviation for "no ligh...
 or partially sighted.

It consists of giving the locations of the black squares in each row as letters (A=1,B=2, etc.), e.g. for the example crossword above:

  1. D E
  2. B D E
  3.  
  4. A B D
  5. A B


Although the numbering scheme
Numbering scheme

There are many different numbering schemes for assigning nominal numbers to entities. These generally require an agreed set of rules, or a central coordinator....
 could be consistently applied from this information, it is customary to quote the starting square of each clue in (number-letter) format.

Computational complexity

The construction of crossword puzzles is an NP-complete
NP-complete

In computational complexity theory, the complexity class NP-complete is a class of problems having two properties:* Any given solution to the problem can be verified quickly ; the set of problems with this property is called NP ....
 problem.

See also

  • Crosswordese
    Crosswordese

    Crosswordese is a term generally used to describe words frequently found in crossword puzzles but seldom found in everyday conversation. They are usually short words, three to five letters, with letter combinations which crossword constructors find useful in the creation of crossword puzzles....
  • Merv Griffin's Crosswords
    Merv Griffin's Crosswords

    Merv Griffin's Crosswords is a Television syndication game show based on crosswords. The show was created by its namesake, Merv Griffin. Ty Treadway is the host, and Edd Hall is the announcer....
    , another crossword-based game show, which debuted in fall 2007.
  • The Cross-Wits
    The Cross-Wits

    The Cross-Wits was an American syndicated game show which premiered on December 15, 1975 and lasted for five seasons until its cancellation on September 12, 1980....
    , a crossword-based game show that ran throughout the mid-to-late-1970s, and again in the mid-1980s.
  • Wordplay
    Wordplay (film)

    Wordplay is a 2006 in film documentary film directed by Patrick Creadon. It features Will Shortz, the editor of the New York Times crossword puzzle, crossword constructor Merl Reagle, and many other noted crossword solvers and constructors....
    , a 2006 documentary film about crossword puzzles.


Puzzles commonly called the numerical equivalent of a crossword:
  • Cross Sums
    Cross Sums

    Kakuro or Kakkuro is a kind of logic puzzle that is often referred to as a mathematics transliteration of the crossword. Kakuro puzzles are regular features in most, if not all, math-and-logic puzzle publications in the United States....
  • Sudoku
    Sudoku

    is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9?9 grid so that each column, each row, and each of the nine 3?3 boxes contains the digits from 1 to 9 only one time each....


Board games based on the crossword concept:
  • Scrabble
    Scrabble

    Scrabble is a word game in which two to four players score points by forming words from individual lettered tiles on a game board marked with a 15-by-15 grid....
  • Upwords
    Upwords

    Upwords, recently christened Scrabble Upwords by Hasbro, is a board game invented by Elliot Rudell and originally published by the Milton Bradley Company ....


Aids to solve crosswords include:
  • Almanac
    Almanac

    An almanac is an annual publication containing tabular information in a particular field or fields often arranged according to the calendar. Astronomy data and various statistics are also found in almanacs, such as the times of the rising and setting of the sun and moon, eclipses, hours of full tide, stated festivals of church es, terms of...
    s
  • Dictionaries
    Dictionary

    A dictionary is a book of Alphabetical order listed words in a specific language, with definitions, etymologies, pronunciations, and other information; or a book of alphabetically listed words in one language with their equivalents in another, also known as a lexicon....
    • Biographical dictionaries
      Biographical dictionary

      Biographical dictionaries — a type of encyclopedic dictionary limited to biographical information — have been written in many languages....
    • Rhyming dictionaries
      Rhyming dictionary

      A rhyming dictionary is a specialist dictionary designed for use in writing poetry and lyrics. In a rhyming dictionary, words are categorized into equivalence classes that consist of words which rhyme with one another....
  • Encyclopedia
    Encyclopedia

    An encyclopedia is a comprehensive written compendium that holds information from either all branches of knowledge or a particular branch of knowledge....
    s
  • Gazetteer
    Gazetteer

    A gazetteer is a geographical dictionary or Directory , an important reference for information about places and place names , used in conjunction with a map or a full atlas....
    s
  • Thesauri
    Thesaurus

    A thesaurus is a work that contains synonyms and sometimes antonyms, in contrast to a dictionary, which contains definitions and pronunciations....


External links

  • (from The Straight Dope)