Charlie and the Chocolate Factory is a 1964 children's book by British author Roald Dahl. The story features the adventures of young Charlie Bucket inside the chocolate factory of eccentric chocolatier Willy Wonka. Charlie and the Chocolate Factory was first published in the United States by Alfred A. Knopf, Inc. in 1964 and in the United Kingdom by George Allen & Unwin in 1967. The book was adapted into two major motion pictures: Willy Wonka & the Chocolate Factory in 1971, and Charlie and the Chocolate Factory in 2005. The book's sequel, Charlie and the Great Glass Elevator, was written by Roald Dahl in 1972. Dahl had also planned to write a third book in the series but never finished it. The story was originally inspired by Roald Dahl's experience of chocolate companies during his schooldays. Cadbury would often send test packages to the schoolchildren in exchange for their opinions on the new products. At that time (around the 1920s), Cadbury and Rowntree's were England's two largest chocolate makers and they each often tried to steal trade secrets by sending spies, posing as employees, into the other's factory. Because of this, both companies became highly protective of their chocolate-making processes. It was a combination of this secrecy and the elaborate, often gigantic, machines in the factory that inspired Dahl to write the story.

Chase H.Q. (チェイスH.Q., "Chase Headquarters") is a 1988 arcade racing game, released by Taito. It is a spiritual successor of Taito's 1987 Full Throttle. The player assumes the role of a police officer named Tony Gibson, member of the "Chase Special Investigation Department." Along with his partner, Raymond Broady, he must stop fleeing criminals in high-speed pursuits. The game was well received in the gaming industry resulting in three arcade-based sequels being released; Special Criminal Investigation (1989), Super Chase: Criminal Termination (1992) and Chase H.Q. 2 (2007). Two spin-offs were also released: Crime City (1989) and Quiz H.Q. (1990). The game was ported to many home computers by Ocean Software in 1989, and included versions for the ZX Spectrum, Amstrad CPC, Commodore 64, Amiga and Atari ST. Taito released versions of the game for the Nintendo Entertainment System (1989), Game Boy (1990), Sega Master System, Sega Game Gear (1991), and TurboGrafx-16 (1992). It was released for PlayStation 2 in Japan in 2007 as part of Taito Memories II Volume 2.

Checkmate (often shortened to mate) is a game position in chess (and in other board games of the chaturanga family) in which a player's king is in check (threatened with capture) and there is no way to remove the threat. Checkmating the opponent wins the game. In chess the king is never actually captured – the game ends as soon as the king is checkmated. In master and serious amateur play, most players resign an inevitably lost game before being checkmated, and it is considered bad etiquette to continue playing in a completely hopeless position. If a player is not in check but has no legal move, then it is stalemate, and the game immediately ends in a draw. A checkmating move is recorded in algebraic notation using the hash symbol (#) – for example, 34.Qh8#.

Chessmaster is a chess-playing computer game series which is now owned and developed by Ubisoft. It is the best-selling chess franchise in history, with more than five million units sold as of 2002.

Chibi Maruko-chan (ちびまる子ちゃん) is a Japanese manga series written and illustrated by Momoko Sakura. The series depicts the simple, everyday life of Momoko Sakura in the times of when she was a little girl where everyone call her Maruko and her family in suburban Japan in the year 1974. The series is set in the former city of Shimizu, now part of Shizuoka City, birthplace of its author. The first story under the title "Chibi Maruko-chan" was published in the August 1986 edition of the shōjo manga magazine Ribon. Other semi-autobiographical stories by the author had appeared in Ribon and Ribon Original in 1984 and 1985, and were included in the first "Chibi Maruko-chan" tankōbon in 1987. The author first began writing and submitting strips in her final year of senior high school, although Shueisha (the publisher of Ribon and Ribon Original) did not decide to run them until over a year later. The author's intent was to write "essays in manga form"; many stories are inspired by incidents from her own life, and some characters are based on her family and friends. The nostalgic, honest and thoughtful tone of the strip led to its becoming popular among a wider audience. Chibi Maruko-chan was adapted into an anime TV series by Nippon Animation, which originally aired on Fuji Television from January 7, 1990 to September 27, 1992. It has also spawned numerous games, animated films and merchandising, as well as a second TV series running from 1995 to the present. Maruko's style and themes are sometimes compared to the classic comic Sazae-san. In 1989, the manga tied to receive the Kodansha Manga Award for shōjo. As of 2006, the collected volumes of the manga had sold more than 31 million copies in Japan, making it the fifth best-selling shōjo manga ever.