recited pi from memory to 42,195

decimal place Significant figures (also known as the significant digits, ''precision'' or ''resolution'') of a number in positional notation are digits in the number that are reliable and necessary to indicate the quantity of something. If a number expres ...

s at

NHK Broadcasting Centre The , the headquarters of NHK, is located in Jinnan, Shibuya, Tokyo, Japan. It includes studios and offices, as well as shops and the popular Studio Park, which is a popular attraction for schoolchildren and tourists. Located within the same ...

, Tokyo on 18 February 1995. This set the world record at the time, which was held for more than a decade until Lu Chao beat it in 2005. He is a

game designer Game design is the art of applying design and aesthetics to create a game for entertainment or for educational, exercise, or experimental purposes. Increasingly, elements and principles of game design are also applied to other interactions, in ...

Namco was a Japanese multinational corporation, multinational video game and entertainment company, headquartered in Ōta, Tokyo. It held several international branches, including Namco America in Santa Clara, California, Namco Europe in London, Na ...

. He is the creator of

word puzzle Word games (also called word game puzzles or word search games) are spoken, board, or video games often designed to test ability with language or to explore its properties. Word games are generally used as a source of entertainment, but can add ...

video game Video games, also known as computer games, are electronic games that involves interaction with a user interface or input device such as a joystick, controller, keyboard, or motion sensing device to generate visual feedback. This fee ...

'' Kotoba no Puzzle Moji Pittan'', which was released as an

arcade game An arcade game or coin-op game is a coin-operated entertainment machine typically installed in public businesses such as restaurants, bars and amusement arcades. Most arcade games are presented as primarily games of skill and include arcade v ...

in 2001 and later become available for various console and portable gaming systems.

External links

Pi World ranking list

(Japanese) Pi-related people Japanese video game designers Keio University alumni People from Tokyo Living people Year of birth missing (living people) {{Japan-bio-stub