The Arrowort is a variant of a crossword that does not have as many black squares as a real crossword, but has arrows inside the grid, with indications in front of the arrows. In many European countries it has been described as the most popular puzzle and is often referred to as « Scandinavian crossword puzzles » because it is probably from Sweden.  Each edition of GAMES Magazine contains a great crossword with a double list under the title The World`s Most Ornery Crossword; both lists are straight and come up with the same solution, but one list is much more demanding than the other. The solver is asked to bend one face in half, showing the grid and hard clues; The simple clues are hidden in the crease that is indicated when the solver is stuck. Many American crossword puzzles have a « theme » that consists of a series of long entries (usually three to five in a standard 15×15 square « weekday size » puzzle) that have in common a relationship, a type of pun or another element. Sarah Keller`s Crossword words for Sarah Keller`s April 26, 2005 New York Times, edited by Will Shortz, contained five thematic articles that ended in different parts of a tree: SQUAREROOT, TABLELEAF, WARDROBETRUNK, BRAINSTEM and BANKBRANCH. Some cryptologists in Bletchley Park were selected after being well received in a crossword contest.  The « Swedish Style » grid does not use warning numbers because the indications in the cells do not contain answers. The arrows indicate the direction in which the indications should be answered: vertically or horizontally. This style of grid is also used in several countries other than Sweden, often in magazines, but also in daily newspapers. The grid often contains one or more photos that replace a block of squares to indicate one or more answers, such as the name of a pop star. B or some kind of rhyme or expression that can be attributed to the photo.
These puzzles usually have no symmetry in the grid, but often have a common theme (literature, music, nature, geography, events of a particular year, etc.). Modern Hebrew is usually written only with consonants; Vowels are either understood or entered as diacritic marks. This can lead to ambiguities when entering certain words, and compilers generally indicate that responses should be introduced into male ktiv (with some vowels) or ktiv haser (without vowels). As Hebrew is written from right to left, but Roman numerals are used and written from left to right, there may be ambiguity in the description of the lengths of entries, especially for multi-word sentences. Different compilers and publications use different conventions for both problems. From their origins in New York, crossword puzzles have spread in many countries and in many languages. In languages other than English, the status of the diacritical language varies according to the spelling of the language, i.e.: The Simon-Schuster Crossword Puzzle Series has published many unusual themed cross words. « Rosetta Stone » by Sam Bellotto Jr. contains a cryptogram of code caesar as the theme; The key to breaking the code is the answer to 1 Across. Another unusual topic requires the Solver to use the response to an indication as another indication. The answer to this remark is the real solution. In the crossword puzzles of the Japanese language; Because of the writing system, a syllable (typically Katakana) is entered into each white cell of the grid instead of a letter, making the typical solution grid seem small compared to other languages.
One in two Yon signs is treated as a complete syllable and is rarely written with a smaller sign. Even code cross words have a Japanese equivalent, although pangramatizity does not apply. Crosswords with Kanji are also produced, but in much smaller numbers, because it takes a lot more effort to build one. Although the Japanese have three forms of writing, Hiragana, Katakana and Kanji, they are rarely mixed into a single crossword. On December 21, 1913, Arthur Wynne, a journalist from Liverpool, England, published a « word-cross » puzzle in the New York World that embodied most of the characteristics of the modern genre.