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Tetris



 
 
Tetris is a puzzle video game originally designed and programmed by Alexey Pajitnov in June 1985, while working for the Dorodnicyn Computing Centre
Dorodnicyn Computing Centre

Dorodnicyn Computing Centre was established in 1955 and became a leading research institute of the Russian Academy of Sciences of the Soviet Union....
 of the Academy of Science of the USSR
Russian Academy of Sciences

The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....
 in Moscow
Moscow

Moscow is the capital and the largest types of inhabited localities in Russia of the Russian Federation. It is also the largest European cities and metropolitan areas, with the Moscow metropolitan area ranking among the largest urban areas in the world....
. He derived its name from the Greek numerical prefix "tetra-", as all of the game's pieces (known as Tetrominoes) contain four segments, and tennis
Tennis

Tennis is a sport played between two players or between two teams of two players each . Each player uses a strung racquet to strike a hollow rubber Tennis ball covered with felt over a net into the opponent's tennis court....
, Pajitnov's favorite sport.

The game (or one of its many variants) is available for nearly every video game console
Video game console

A video game console is an game development that produces a video signal which can be used with a display device to display a video game. The term "video game console" is used to distinguish a machine designed for consumers to buy and use solely for playing video games from a personal computer, which has many other functions, or arcade machi...
 and computer operating system
Operating system

An operating system is an interface between hardware and applications; it is responsible for the management and coordination of activities and the sharing of the limited resources of the computer....
, as well as on devices such as graphing calculator
Graphing calculator

A graphing calculator typically refers to a class of handheld calculators that are capable of plotting graph of a function, solving simultaneous equations, and performing numerous other tasks with variables....
s, mobile phone
Mobile phone

A mobile phone is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites....
s, portable media player
Portable media player

A portable multimedia player , sometimes referred to as a portable video player , is a consumer electronics device that is capable of storing and playing digital media....
s, PDAs
Personal digital assistant

A personal digital assistant is a handheld computer, also known as a palmtop computer. Newer PDAs also have both color screens and audio capabilities, enabling them to be used as mobile phones, , web browsers, or portable media players....
 and even as an Easter egg
Easter egg (media)

A virtual Easter egg is an intentional hidden message, in-joke or feature in an object such as a film, book, Compact disc, DVD, computer program, web page or video game....
 on non-media products like oscilloscope
Oscilloscope

An oscilloscope is a type of electronic test instrument that allows signal voltages to be viewed, usually as a two-dimensional graph of one or more electrical potential differences plotted as a function of time or of some other voltage ....
s.






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Tetris is a puzzle video game originally designed and programmed by Alexey Pajitnov in June 1985, while working for the Dorodnicyn Computing Centre
Dorodnicyn Computing Centre

Dorodnicyn Computing Centre was established in 1955 and became a leading research institute of the Russian Academy of Sciences of the Soviet Union....
 of the Academy of Science of the USSR
Russian Academy of Sciences

The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....
 in Moscow
Moscow

Moscow is the capital and the largest types of inhabited localities in Russia of the Russian Federation. It is also the largest European cities and metropolitan areas, with the Moscow metropolitan area ranking among the largest urban areas in the world....
. He derived its name from the Greek numerical prefix "tetra-", as all of the game's pieces (known as Tetrominoes) contain four segments, and tennis
Tennis

Tennis is a sport played between two players or between two teams of two players each . Each player uses a strung racquet to strike a hollow rubber Tennis ball covered with felt over a net into the opponent's tennis court....
, Pajitnov's favorite sport.

The game (or one of its many variants) is available for nearly every video game console
Video game console

A video game console is an game development that produces a video signal which can be used with a display device to display a video game. The term "video game console" is used to distinguish a machine designed for consumers to buy and use solely for playing video games from a personal computer, which has many other functions, or arcade machi...
 and computer operating system
Operating system

An operating system is an interface between hardware and applications; it is responsible for the management and coordination of activities and the sharing of the limited resources of the computer....
, as well as on devices such as graphing calculator
Graphing calculator

A graphing calculator typically refers to a class of handheld calculators that are capable of plotting graph of a function, solving simultaneous equations, and performing numerous other tasks with variables....
s, mobile phone
Mobile phone

A mobile phone is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites....
s, portable media player
Portable media player

A portable multimedia player , sometimes referred to as a portable video player , is a consumer electronics device that is capable of storing and playing digital media....
s, PDAs
Personal digital assistant

A personal digital assistant is a handheld computer, also known as a palmtop computer. Newer PDAs also have both color screens and audio capabilities, enabling them to be used as mobile phones, , web browsers, or portable media players....
 and even as an Easter egg
Easter egg (media)

A virtual Easter egg is an intentional hidden message, in-joke or feature in an object such as a film, book, Compact disc, DVD, computer program, web page or video game....
 on non-media products like oscilloscope
Oscilloscope

An oscilloscope is a type of electronic test instrument that allows signal voltages to be viewed, usually as a two-dimensional graph of one or more electrical potential differences plotted as a function of time or of some other voltage ....
s. It has even been played on the sides of various buildings, with the record holder for the world's largest fully functional game of Tetris being an effort by Dutch students in 1995 that lit up all 15 floors of the Electrical Engineering department at Delft University of Technology
Delft University of Technology

The Delft University of Technology in Delft, the Netherlands, is the nation's largest technical university, with over 13,000 students and 2,100 scientists ....
.

While versions of Tetris were sold for a range of 1980s home computer
Home computer

A home computer was a class of personal computer entering the market in 1977 and becoming common during the 1980s. They were marketed to consumers as accessible personal computers, more capable than video game consoles....
 platforms, it was the hugely successful handheld version
Tetris (Game Boy)

Tetris was a pack-in title included with the Game Boy at the handheld's release 1989 in video gaming. It is a portable version of Alexey Pajitnov's Tetris....
 for the Game Boy
Game Boy

The is an 8-bit handheld game console developed and manufactured by Nintendo. It was released in Japan on , in North America in August , and in Europe in ....
 launched in 1989 that established the reputation of the game as one of the most popular ever. Electronic Gaming Monthly
Electronic Gaming Monthly

Electronic Gaming Monthly was an United States video game magazine. It was published by Ziff Davis as part of the 1UP.com Network and released 12 issues a year ....
s 100th issue had
Tetris in first place as "Greatest Game of All Time". In 2007, Tetris came in second place in IGN
IGN

IGN is a multimedia news and reviews website that focuses heavily on video games. Its corporate parent is IGN Entertainment, which owns and controls separate sites such as GameSpy, GameStats, Rotten Tomatoes and AskMen....
's "100 Greatest Video Games of All Time".

Gameplay


A random sequence of tetromino
Tetromino

A tetromino, also spelled tetramino or tetrimino, is a geometric shape composed of four square s, connected orthogonality. This is a particular type of polyomino, like dominoes and pentominoes are....
es (sometimes called "tetrads" in older versions)—shapes composed of four square blocks each—fall down the playing field. The object of the game is to manipulate these tetrominoes, by moving each one sideways and rotating it by 90 degree units, with the aim of creating a horizontal line of blocks without gaps. When such a line is created, it disappears, and any block above the deleted line will fall. As the game progresses, the tetrominoes fall faster, and the game ends when the stack of tetrominoes reaches the top of the playing field and no new tetrominoes are able to enter.

Tetris game manuals refer to the seven one-sided tetrominoes in
Tetris as I, J, L, O, S, T, and Z—due to their resembling letters of the alphabet—but players sometimes use other names for the pieces, such as "stick" for I or "snake" for S. All are capable of single and double clears. I, J, and L are able to clear triples. Only the I tetromino has the capacity to clear four lines simultaneously, and this is referred to as a "tetris" (this may vary depending on the rotation and compensation rules of each specific Tetris implementation. For instance, in the Super Rotation System (see below) used in many recent implementations, certain rare situations allow T, S and Z to 'snap' into tight spots, clearing triples).

Colors of tetrominoes

Pajitnov's original version for the Elektronika 60 computer used green brackets to represent blocks. Versions of
Tetris on the original Game Boy and on most dedicated handheld games also use monochrome
Monochrome

Monochrome comes from the Greek language ?????????? , meaning ?of one color?, which is a combination of ????? , meaning ?alone? or ?solitary?, and ????a , meaning ?color?....
 or grayscale graphics. But most popular versions use a separate color for each distinct shape. Prior to The Tetris Company's standardization in the early 2000s, those colors varied widely from implementation to implementation.

Colors of tetrominoes in various Tetris games
Piece Vadim Gerasimov's
Tetris 3.12
Microsoft
Tetris
Microsoft Entertainment Pack

The original Microsoft Windows Entertainment Pack is a collection of simply-designed computer games for Microsoft Windows. These games were somewhat unusual for the time, in that they would not run under MS-DOS....
Sega/Arika
(TGM series
Tetris: The Grand Master

Tetris: The Grand Master is a series of Computer puzzle game created by Arika, Inc. based on the popular Tetris license. The Grand Master series of games introduced several play mechanics to Tetris gameplay which can be seen today in its sequels, and many other Tetris implementations....
)
The New Tetris
The New Tetris

The New Tetris is a tetromino based puzzle video game released for the Nintendo 64 by Nintendo based on the popular Tetris games. The game was originally released on July 31, 1999....

and
Kids Tetris
SRS (Tetris Worlds
and
Tetris DS
Tetris DS

Tetris DS is a Touch! Generations puzzle game developed and published by Nintendo for the Nintendo DS. THQ announced Tetris DS before E3 2005, and scheduled it to make an appearance at the show....
)
Atari/
Arcade
TET?IS The Soviet
Mind Game
I red red red cyan cyan red red
J white magenta blue blue-violet blue yellow orange
L magenta yellow orange magenta orange magenta magenta
O dark blue cyan yellow light grey yellow blue blue
S green green magenta green green cyan green
T brown light grey cyan yellow purple green olive
Z cyan blue green red red orange cyan


Scoring

The scoring formula for the majority of
Tetris products is built on the idea that more difficult line clears should be awarded more points. For example, a single line clear in Tetris Zone is worth 100 points, while a back-to-back Tetris is worth 1,200.

Nearly all
Tetris games allow the player to press a button to increase the speed of the current piece's descent, rather than waiting for it to fall. If the player can stop the increased speed before the piece reaches the floor by letting go of the button, this is a "soft drop"; otherwise, it is a "hard drop" (some games allow only soft drop or only hard drop; others have separate buttons). Many games award a number of points based on the height the piece fell before locking.

In many games, an animation will complement scoring. For example, in the NES
Tetris, Game Boy Tetris, and Game Boy Color Tetris DX, finishing some modes with at least a given score or a given difficulty results in a cut scene
Cut scene

A cut scene is a sequence in a video game over which the video game player has little or no control, often breaking up the gameplay and used to advance the plot, present character development, and provide background information, atmosphere, dialogue and clues....
. In some cases, this is a rocket
Rocket

A rocket or rocket vehicle is a missile, aircraft or other vehicle which obtains thrust by the Reaction of the rocket to the ejection of fast moving fluid exhaust from a rocket engine....
 lifting off from a launch pad, where higher scores produce a larger rocket, or even the entire city of Moscow lifting off into orbit. Other possible cut scenes show dancers and musicians.

Gravity

Traditional versions of
Tetris move the stacks of blocks down by a distance exactly equal to the height of the cleared rows below them. Contrary to the laws of gravity, blocks may be left floating above gaps. Implementing a different algorithm that uses a flood fill
Flood fill

Flood fill, also called seed fill, is an algorithm that determines the area Glossary of graph theory#Connectivity to a given node in a multi-dimensional array....
 to segment the playfield into connected regions will make each region fall individually, in parallel, until it touches the region at the bottom of the playfield. This opens up additional "chain-reaction" tactics involving blocks cascading to fill additional lines, which may be awarded as more valuable clears.

Easy spin dispute

Although not the first
Tetris game to feature "easy spin" (see The Next Tetris), also called "infinite spin" by critics, Tetris Worlds
Tetris Worlds

Tetris Worlds is a version of the popular video game Tetris. It was originally released in 2001 for Microsoft Windows and the Game Boy Advance....
was the first game to fall under major criticisms for it. Easy spin refers to the ability of a tetromino
Tetromino

A tetromino, also spelled tetramino or tetrimino, is a geometric shape composed of four square s, connected orthogonality. This is a particular type of polyomino, like dominoes and pentominoes are....
's lockdown time to regenerate after left or right movement or rotation, and this has been implemented into The Tetris Company
Tetris Company

The Tetris Company LLC, aka TTC, is based in Hawaii and is managed by Henk Rogers. The company currently owns the trademark to the game Tetris, originally conceived by Alexey Pajitnov....
's official guideline. This new type of play differs from traditional
Tetris because it takes away the pressure of higher level speed. Some reviewers even went so far as to say that this mechanism broke the game. The goal in Tetris Worlds, however, has to do with completing a certain number of lines as fast as possible, so technically the ability to hold off a piece's placement will not make achieving that goal any faster. Later, GameSpot received "easy spin" more openly, saying "though the infinite spin issue honestly really affects only a few of the single-player gameplay modes in Tetris DS, because any competitive mode requires you to lay down pieces as quickly as humanly possible." In response to the issue, Henk Rogers
Henk Rogers

Henk Rogers is a video game designer and entrepreneur, best known for winning a license for Nintendo's handheld and console versions of the computer game Tetris from the Soviet Government organisation ELORG, beating Robert Maxwell's empire in the process....
 stated in an interview that infinite spin was part of the guideline, giving a rationale:

History

Tetris has been involved in many legal battles. In June 1985, Alexey Pajitnov created Tetris on an Elektronika 60 while working for the Soviet Academy of Sciences at their Computer Center in Moscow with Dmitry Pavlovsky, and Vadim Gerasimov
Vadim Gerasimov

Vadim Gerasimov is an engineer at Google. In 1994-2003 Vadim worked and studied at the MIT Media Lab. At age 16 he was one of the original co-developers of the famous video game Tetris: he ported Alexey Pajitnov's original game to the PC architecture and the two later added features to the game....
 ported it to the IBM PC
IBM PC

The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform ....
. Gerasimov reports that Pajitnov chose the name "Tetris" as "a combination of 'tetramino' and 'tennis'."

From there, the PC game exploded into popularity, and began spreading all around Moscow. This version is available on Gerasimov's web site.

The IBM PC version eventually made its way to Budapest
Budapest

Budapest is the Capitals of Hungary of Hungary. As the largest city of Hungary, it serves as the country's principal political, cultural, commerce, Industry, and transportation center and is considered an important hub in Central Europe....
, Hungary
Hungary

Hungary , officially in English the Republic of Hungary , is a landlocked country in the Carpathian Basin of Central Europe, bordered by Austria, Slovakia, Ukraine, Romania, Serbia, Croatia, and Slovenia....
, where it was ported to various platforms and was "discovered" by a British software house named Andromeda. They attempted to contact Pajitnov to secure the rights for the PC
Personal computer

A personal computer is any general-purpose computer whose original sales price, size, and capabilities make it useful for individuals, and which is intended to be operated directly by an end user, with no intervening computer operator....
 version, but before the deal was firmly settled, they had already sold the rights to Spectrum HoloByte
Spectrum HoloByte

Spectrum HoloByte, Inc. was a video game developer and video game publisher originally based in Alameda, California.The company was founded in 1983 in video gaming and was most famous for its simulation games, notably the Falcon series of flight simulators and Vette!, a driving simulator from 1989 in video gaming....
. After failing to settle the deal with Pajitnov, Andromeda attempted to license it from the Hungarian programmers instead.

Meanwhile, before any legal rights were settled, the Spectrum HoloByte IBM PC version of
Tetris was released in the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
 in 1986. The game's popularity was tremendous, and many players were instantly hooked—it was a software blockbuster, with reviews such as in
Computer Gaming World
Computer Gaming World

Computer Gaming World was founded in 1981 by Russell Sipe as a bimonthly publication. Early issues were typically 40-50 pages in length, written in a newsletter style, including submissions by game designers such as Joel Billings , Dan Bunten , and Chris Crawford ....
calling the game "deceptively simple and insidiously addictive".

The details of the licensing issues were uncertain by this point, but in 1987 Andromeda managed to obtain copyright licensing for the IBM PC version and any other home computer system.

For Amiga
Amiga

The Amiga is a family of personal computers originally developed by Amiga Corporation. Development on the Amiga began in 1982 with Jay Miner as the principal hardware designer....
 and Atari ST
Atari ST

The Atari ST is a home computer/personal computer that was commercially available from 1985 to the early 1990s. It was released by Atari Corporation in 1985....
 two different versions by Spectrum HoloByte and Mirrorsoft
Mirrorsoft

Mirrorsoft was a game software publisher in the United Kingdom, owned by Mirror Group Newspapers. It started off with educational software and then moved into games....
 became available. The Mirrorsoft version did not feature any background graphics while the Holobyte version had a background picture related to Russian themes for each level. Games were sold as budget titles due to the game's simplicity. Spectrum's Apple II package actually contained three diskettes with three different versions of the game, for the Apple II+ and Apple IIe
Apple IIe

The Apple IIe is the third model in the Apple II series of personal computers produced by Apple Computer. The e in the name stands for enhanced, referring to the fact that several popular features were now built-in that were only available as upgrades and add-ons in earlier models....
 on separate DOS 3.3
Apple DOS

Apple DOS refers to operating systems for the Apple II series of Personal computer from 1979 through early 1983. Apple DOS had three major releases: DOS 3.1, DOS 3.2, and DOS 3.3; each one of these three releases was followed by a second, minor "bug-fix" release, but only in the case of Apple DOS 3.2 did that minor release receive its own ver...
 and ProDOS
ProDOS

ProDOS was the name of two similar operating systems for the Apple II series of personal computers. The original ProDOS, renamed ProDOS 8 in version 1.2, was the last official operating system usable by all Apple II series computers, and was distributed from 1983 to 1993....
 5-1/4" diskettes, and for the Apple IIgs
Apple IIGS

The Apple , the fifth model inception of the Apple II, was the most powerful member of the Apple II series of microcomputer made by Apple Inc.. At the time of its release, it was capable of advanced color graphics and then-state-of-the-art sound synthesis that surpassed those of most other computers, including the black and white Macintosh ....
 on a 3-1/2" diskette, none of which were copy-protected: the included documentation specifically charged the purchaser on his or her honor to not give away or copy the extra diskettes!

By 1988, the Soviet government began to market the rights to
Tetris through an organization called Elektronorgtechnica
Elektronorgtechnica

Elektronorgtechnica , better known abbreviated as ELORG, is the former Soviet Ministry of Software and Hardware Export that was responsible for the licensing and development of the popular video game Tetris ....
, or "Elorg" for short. Pajitnov had granted his rights to the Soviet Government, via the Computer Center he worked at for ten years. By this time Elorg had still seen no money from Andromeda, and yet Andromeda was licensing and sub-licensing rights that they themselves did not even have.

By 1989, half a dozen different companies claimed rights to create and distribute the
Tetris software for home computers, game consoles, and handheld systems. Elorg, meanwhile, held that none of the companies were legally entitled to produce an arcade
Arcade game

An arcade game is a coin-operated entertainment machine, typically installed in businesses such as restaurants, public houses, video arcades, and Family Entertainment Centers....
 version, and signed those rights over to Atari Games
Atari Games

Atari Games Corporation was an United States producer of arcade games, and originally part of Atari...
, while it signed non-Japan
Japan

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
ese console and handheld rights over to Nintendo
Nintendo

is a global company located in Kyoto, Japan founded on September 23, 1889 by Fusajiro Yamauchi to produce handmade hanafuda cards. By 1963, the company had tried several small niche businesses, such as a cab company and a love hotel....
.

Tetris Nes Play
Tengen
Tengen (company)

Tengen was a video game publisher and video game developer that was created by arcade game manufacturer Atari Games. Atari had been split into two distinct companies....
 (the console software division of Atari Games
Atari Games

Atari Games Corporation was an United States producer of arcade games, and originally part of Atari...
), regardless, applied for copyright for their
Tetris game for the Nintendo Entertainment System
Nintendo Entertainment System

The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America, Europe and Australia in . In most of Asia, including Japan , the Philippines, China, Vietnam and Singapore, it was released as the ....
, loosely based on the arcade version, and proceeded to market and distribute it under the name
TET?IS: The Soviet Mind Game (with faux Cyrillic
Faux Cyrillic

Faux Cyrillic, pseudo-Cyrillic, pseudo-Russian or faux Russian typography is the use of Cyrillic alphabet in Latin alphabet to evoke the Soviet Union or Russia....
 typography incorporating the Cyrillic letter Ya
Ya (Cyrillic)

Ya is a letter in the Cyrillic alphabet, the civil script variant of Old Cyrillic . Among modern Slavonic languages it is used by Russian language, Belarusian language and Ukrainian language to represent both the combination in initial or post-vocalic position and after a palatalized consonant; in Bulgarian language it may represent or...
), disregarding Nintendo's license from Elorg.

Nintendo contacted Atari Games claiming they had stolen rights to
Tetris, whereupon Atari Games sued, believing they had the rights. After only four weeks on the shelf, the courts ruled that Nintendo had the rights to Tetris on home game systems, and Tengen's TET?IS game was recalled, with an unknown number of copies sold.

Nintendo released their version of
Tetris for both the NES
Nintendo Entertainment System

The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America, Europe and Australia in . In most of Asia, including Japan , the Philippines, China, Vietnam and Singapore, it was released as the ....
 and the Game Boy (the Famicom and Game Boy versions were developed by Bullet-Proof Software, Inc., who held the Japanese license, despite Nintendo's license to the game) and sold more than three million copies; some players considered Nintendo's NES version inferior because it lacked the side-by-side simultaneous play of Tengen's version, but Nintendo's Game Boy
Tetris became arguably the most well-known version of Tetris. The lawsuits between Tengen and Nintendo over the Famicom/NES version carried on until 1993.

Sega
Sega

is a Multinational corporation video game software and hardware development company, and a home computer and console manufacturer headquartered in Ota, Tokyo, Tokyo, Japan....
 also released a Tetris game for the Mega Drive, however the ensuing blitz of litigation ensured that it was hastily withdrawn.

Pajitnov himself has made very little money from the deal, even though Nintendo profited greatly from the game.

In 1996, when Russian restrictions expired, he and Henk Rogers
Henk Rogers

Henk Rogers is a video game designer and entrepreneur, best known for winning a license for Nintendo's handheld and console versions of the computer game Tetris from the Soviet Government organisation ELORG, beating Robert Maxwell's empire in the process....
 formed The Tetris Company
Tetris Company

The Tetris Company LLC, aka TTC, is based in Hawaii and is managed by Henk Rogers. The company currently owns the trademark to the game Tetris, originally conceived by Alexey Pajitnov....
 LLC and Blue Planet Software
Blue Planet Software

Blue Planet Software, formerly known as Bullet Proof Software, is a video game developer/publisher. The original Bullet Proof Software was founded in Japan in the 1980s....
 in an effort to get royalties from the
Tetris brand, with good success on game consoles but very little on the PC front. The Tetris Company (TTC) managed to secure trademark
TradeMark

TradeMark is a tall, primarily residential, skyscraper in Charlotte, North Carolina. It was completed in 2007 and has 28 floors. There are 200 hundred residential units....
 registrations for the
Tetris mark in several countries and has licensed the brand to a number of companies, but courts have not decided on the legality of tetromino games that do not use the Tetris name. Blue Planet was later purchased by JAMDAT Mobile
JAMDAT Mobile

EA Mobile is an United States video game developer studio of the video game publisher Electronic Arts .File:Ea mobile logo.pngThe studio's primary business is producing games for mobile phones....
, in turn purchased by Electronic Arts
Electronic Arts

Electronic Arts is an international video game developer, marketer, video game publisher and distributor of video games. Established in 1982 by Trip Hawkins, the company was a pioneer of the early home computer games industry and was notable for promoting the designers and programmers responsible for its games....
.

According to circulars available from the United States Library of Congress, a game cannot be copyrighted (only patented), which would invalidate much of TTC's copyright claim on the game, leaving the trademark
TradeMark

TradeMark is a tall, primarily residential, skyscraper in Charlotte, North Carolina. It was completed in 2007 and has 28 floors. There are 200 hundred residential units....
 on
Tetris as TTC's most significant claim.

Some players prefer
Tetris brand games; others prefer homemade tetromino games downloaded from the Internet, which are given names such as "N-Blox" or "Lockjaw" so as not to infringe trademarks. In late 1997 and in mid-2006, TTC's legal counsel sent cease and desist
Cease and desist

A cease and desist is an order or request to halt an activity, or else face legal action. The recipient of the cease-and-desist may be an individual or an organization....
 letters to web sites that misused the
Tetris trademark to refer to homemade tetromino games.

Variations

Tetris has been subject to many changes throughout releases since the 1980s. It is difficult to place a standard on the game, as newer releases frequently progress it either to make the game better or to keep players interested. Newer Tetris games have made the trend of pace rather than endurance. Older releases such as Game Boy or NES Tetris offer records according to points. Since the meter for points is set to only a certain number of digits, these game's records can be "maxed out" by an experienced player. The next big Game Boy release after Tetris, Tetris DX, in marathon mode—comparable to mode A in previous releases—allowed an additional digit for the point meter. Even so, players still maxed it to 9,999,999 points after hours of play. For The New Tetris
The New Tetris

The New Tetris is a tetromino based puzzle video game released for the Nintendo 64 by Nintendo based on the popular Tetris games. The game was originally released on July 31, 1999....
, world record competitors have spent over 12 hours playing the same game. It is probably for this reason of seemingly everlasting play that in both Tetris DX and The New Tetris, the new modes sprint and ultra were added. These modes require the player to act under a timer—either to gain the most lines or points in that time. Recent releases like Tetris Worlds did away completely with point records. This particular game kept records by how fast a certain number of lines could be cleared depending on the level. A drawback of this deviation, along with some other newer features, is that many traditional players rejected these advances all together. Critics of Tetris Worlds said it was broken due to how a piece is able to hover over the bottom for as long as a player needs; although, players of the game generally do not mind this feature because exploiting it will only hinder play, which is unfavorable to making a record time. Tetris LLC has been juggling different features with different modes of play in past years trying to satisfy traditional and newer players alike.

There are many different modes of play added in recent years. Modes appearing in more than one major release include: classic marathon (game A), sprint (otherwise game B or 40 lines), ultra, square, and cascade.

The field dimension of
Tetris is perhaps the least deviated among releases: almost always 10 cells wide by 20 high. Some releases on handheld platforms with small screens have smaller fields; for example, the Tetris Jr. keychain game
Handheld electronic game

Handheld electronic games are very small, portable devices for playing interactive electronic games, often miniaturized versions of video games....
 has 8 by 12, and
Tetris for Game Boy has 10 by 18.

Traditionally, blocks spawn within the four most central columns and the two highest rows. The
I tetromino occupies columns 4, 5, 6 and 7, the O tetromino occupies columns 5 and 6, and the remaining 5 tetrominoes occupy columns 4, 5 and 6 (or in some, especially older, versions, 5, 6 and 7). In some more recent games, pieces spawn above the visible playfield.

In traditional games, a level-up would occur once every ten lines are cleared. During a level-up, the blocks fall slightly faster, and typically more points are given. In some newer games such as
Tetris Worlds, the number of lines required vary upon each new level. For example, NES Tetris operates at 60 frames per second. At level 0, a piece falls one step every 48 frames, and at level 19, a piece falls one step every 2 frames. Level increments either terminate at a certain point (Game Boy Tetris tops off at level 20) or increase forever yet not in speed after a certain point. NES Tetris will level up in until the speed of level 29 (due to limitations of the game's engine, pieces are not capable of dropping faster than this), but tool-assisted emulation will show that the level indicator increases indefinitely—eventually leading to a glitch where the meter displays non-numeric characters. Modern games such as Tetris the Grand Master or Tetris Worlds, at their highest levels, opt to drop a piece more than one row per frame. Pieces will appear to reach the bottom as soon as they spawn. As a result, these games have a delay that lets the player slide the piece on the bottom for a moment to help deal with an otherwise unplayable fall speed. In some games, the hover time is regenerated after a piece is moved or rotated.

Soft drops were first implemented in Nintendo releases of
Tetris so that pieces would be able to drop faster while not lock as to slide into gaps. The other option is hard dropping, which originated in early PC games such as Microsoft Tetris, a game developed by Dave Edson and bundled with Microsoft Entertainment Pack
Microsoft Entertainment Pack

The original Microsoft Windows Entertainment Pack is a collection of simply-designed computer games for Microsoft Windows. These games were somewhat unusual for the time, in that they would not run under MS-DOS....
. With hard dropping, a piece falls and locks in one frame. Newer
Tetris games feature both options. Some games have their locking roles reversed, with soft dropping making the pieces drop faster and locking down, and hard dropping making the pieces drop instantly but not lock.

Single direction rotation is an older restriction that has since been ruled out in nearly every new official release by the favor of separate buttons for clockwise and one for counterclockwise rotation. In traditional games, the unsymmetrical vertical orientation I-, Z-, and S-pieces will fill the same columns for each clockwise and counter clockwise rotation. Some games vary this by allowing two possible column orientations: one for counter clockwise and one for clockwise rotations. Double rotation, only seen in progressive clones such as
Quadra and DTET, rotates the piece 180 degrees.

One of the features most appreciated by skilled players is
wall kick, or the ability of rotating the pieces even if these touch the left or right walls. In the NES version, for example, if a Z piece is "vertically" aligned and falling touching the left wall, the player cannot rotate the piece, giving the impression that the rotate buttons are locked. In this situation, the player has to move the piece one position to the right before rotating it, losing precious time. Proper implementations of wall kick first appeared in the arcade version of Tetris by Atari Games.

Piece preview allows a look at the next piece to enter the field. This feature has been implemented since the earliest games, though in those early games, having the preview turned on made the score increase more slowly.

Newest features

Newer versions of
Tetris add different scoring goals not present in traditional Tetris. As achieving these goals while not topping out becomes more difficult, these games usually add a few features to help the player.

The New Tetris and The Next Tetris are the first official Tetris games to feature multiple piece previews, showing 3 in advance. Tetris Worlds for PCs and game consoles add 5 more, while the GBA version retains the 3 piece preview. Tetris DS uses the 6-piece preview.

The "phantom piece" (referred to in some versions, such as the
Tetris Mania cell phone game, as the "ghost") is a feature that shows an obscuration in the shape of the current piece over where that piece would drop. The feature disposes with the old problem of misdrops and is relatively new.

Hold piece is an optional ability to reserve a piece for later use, allowing a player to either avoid undesirable pieces or save desirable ones, usually the I piece or a piece needed to complete another goal. Some clones featured it as a powerup that the player could earn and use once. A hold piece available to the player at all times was first featured in
The New Tetris. Games that have hold piece generally activate it when the player presses both rotate buttons simultaneously or when the player presses a dedicated button, depending on the game. When hold piece is activated, it causes the falling piece to move to the top and trade places with the hold piece. However, the feature cannot be activated twice in a row; a piece released from the hold must be dropped into the well.

Initial rotation and Initial hold are features that make the game accept rotation/hold button inputs while the next piece is still in the preview area. With initial rotation, when the player holds down the rotation button after the previous piece has locked down but before the next piece comes into the well, the next piece will come into the well in an already rotated state. Initial hold works similarly, as the piece will be already swapped with the hold piece when it enters the well. Initial rotation and Initial hold first appeared in the
Tetris: The Grand Master
Tetris: The Grand Master

Tetris: The Grand Master is a series of Computer puzzle game created by Arika, Inc. based on the popular Tetris license. The Grand Master series of games introduced several play mechanics to Tetris gameplay which can be seen today in its sequels, and many other Tetris implementations....
series.

Tetris DS features wireless on-line play through the Nintendo Wi-Fi Connection
Nintendo Wi-Fi Connection

The Nintendo Wi-Fi Connection is an online multiplayer gaming service run by Nintendo to provide free online play in compatible Nintendo DS and Wii games....
 system. This new version also takes advantage of the touch screen in the added "Touch Mode," which has no time limit. Instead, every block is already placed in a tall tower, and the player uses the stylus from the Nintendo DS
Nintendo DS

The is a dual-screen handheld game console developed and manufactured by Nintendo. It was released in 2004 in video gaming in Canada, the United States, and Japan....
 to shift blocks left and right and, in earlier towers, rotate blocks. The goal is to clear enough lines so that a cage of balloons reaches the ground (this mode is themed on the NES video game
Balloon Fight
Balloon Fight

is a video game developed by Nintendo. The arcade version was released in 1984 and the Nintendo Entertainment System version was released in . The gameplay is similar to the arcade game Joust by Williams Electronics....
, hence the cage of balloons).

Tetris DS also introduces the Metroid
Metroid

Metroid is an action-adventure game video game and the first entry in the Metroid . Developed by Nintendo Research & Development 1 and published by Nintendo, the game was released in Japan in August 1986, in North America in August 1987, and in Europe in January 1988....
-themed "Catch Mode". In this mode, the pieces still fall downward, but the stack is moved and rotated instead. As the falling pieces bump against the stack, they get clustered into it. To clear blocks, there must be a solid area of the stack that is 4×4 or larger. When this happens, the blocks glow and the music changes. After ten seconds or upon pressing the X button, these blocks disappear and shoot a laser beam in a plus-shape, the horizontal part equal to the number of rows cleared and the vertical equal to the columns. This laser beam will destroy falling blocks and Metroid enemies in its path. The parts of the stack not hit by the laser beam will be pulled in towards the center of the stack after the laser beam dies. If a piece falls below of the bottom screen, the stack hits a falling block while rotating, or the stack hits a Metroid, the stack loses Energy. The player loses if the stack runs out of Energy or if the stack becomes so large that it can no longer fit on the bottom screen.

The
Tetris arcade game offered different "puzzles" for selected rounds. The first three rounds are played normally, with no obstacles. At the start of round 4, eight bricks are placed vertically along each side of the well. Round 5 begins with ten bricks scattered throughout the bottom five rows. Round 6 begins with twenty bricks arranged in a pyramid. In rounds 7 through 9, the well starts out empty but single bricks will appear at random on top of your puzzle each time a piece lands that does not clear any lines, potentially thwarting any advance planning you may have done. In rounds 10 through 12, incomplete "garbage" lines will randomly pop up underneath your puzzle, pushing the puzzle upward, when a piece lands without clearing any lines. Rounds 13 through 15 begin with more blocks arranged in predetermined patterns, and the cycle continues throughout the remaining rounds in the game in groups of three.

Tetris variants

Several Tetris variants exist. Some feature alternate rules and pieces, and others have completely different gameplay.

Because of its popularity and the relatively simple code required to produce the game, a game with nearly the same rules as
Tetris is often used as a hello world project for programmers coding for a new system or programming language. This has resulted in the availability of a large number of ports
Porting

In computer science, porting is the process of adapting software so that an executable Computer program can be created for a computing environment that is different from the one for which it was originally designed ....
 for different platforms, most of which are not endorsed by The Tetris Company and are given away freely. For instance, µTorrent and GNU Emacs contain tetromino stacking games as easter eggs.

End of play

Players can lose a typical game of
Tetris when they can no longer keep up with the increasing speed, and the tetrominoes stack up to the top of the playing field.

Would it be possible to play forever?

The question
Would it be possible to play forever? was first encountered in a thesis by John Brzustowski in 1988 and has been more recently investigated in published articles by Walter Kosters. The conclusion reached was that a player is inevitably doomed to lose. The reason has to do with the S and Z tetrominoes. If a player receives a large sequence of S tetrominoes, the naďve gravity used by the standard game eventually forces the player to leave a hole in a corner.

Suppose that player then receives a large sequence of Z tetrominoes. Eventually, that player will be forced to leave a hole in the opposite corner without clearing the previous hole. Back and forth, the holes will necessarily stack to the top. If the pieces are distributed randomly, this sequence will eventually occur. Thus, if a game with an ideal, uniform, uncorrelated random number generator is played long enough, any player will top out.

Practically, this does not occur in most of Tetris variants. Some variants allow the player to choose to play with only S and Z tetrominoes, and a good player may survive well over 150 consecutive tetrominoes this way. On an implementation with an ideal uniform randomizer, the probability at any given time of the next 150 tetrominoes being only S and Z is one in (2/7)150 (approximately 2×10-82). Most implementations use a pseudorandom number generator
Pseudorandom number generator

A pseudorandom number generator is an algorithm for generating a sequence of numbers that approximates the properties of random numbers. The sequence is not truly random in that it is completely determined by a relatively small set of initial values, called the PRNG's state. Although sequences that are closer to truly random can be gen...
 to generate the sequence of tetrominoes, and such an S–Z sequence is almost certainly not contained in the sequence produced by the 32-bit linear congruential generator
Linear congruential generator

A linear congruential generator represents one of the oldest and best-known pseudorandom number generator algorithms. The theory behind them is easy to understand, and they are easily implemented and fast....
 in many implementations (which has roughly 4.2 × 109 states). In fact, newer
Tetris brand games from 2001 and later tend to follow a new guideline such that the randomizer generates all seven tetrominoes in a permutation
Permutation

In several fields of mathematics the term permutation is used with different but closely related meanings. They all relate to the notion of mapping the element s of a set to other elements of the same set, i.e., exchanging elements of a set....
 at one time, guaranteeing an even distribution over the short term, and this randomizer allows the player to continue a game indefinitely in theory, often clearing all blocks from the playfield. On the other hand, the "evil" algorithm in Bastet often starts a game with a series of more than seven Z pieces.

Recent versions of Tetris such as
Tetris Worlds allow the player to continuously rotate a block once it hits the bottom of the playfield, without it locking into place (see Easy spin dispute
Tetris

Tetris is a puzzle video game originally designed and programmed by Alexey Pajitnov in June 1985, while working for the Dorodnicyn Computing Centre of the Russian Academy of Sciences in Moscow....
, above). This permits a player to play for an infinite amount of time, though not necessarily to land an infinite number of blocks.

Music

  • Music A in the original Game Boy edition of Tetris has become very widely known, to the point that Level 20 in Tetris DS is based on the original Game Boy version of Tetris and uses that theme. It is an instrumental arrangement of a Russian folk tune called "Korobeiniki
    Korobeiniki

    "Korobeiniki" , also romanized "Korobeyniki" and occasionally referred to as "Korobushka" or "The Peddlers", is a Russian folk song....
    " (with various Latin spellings), which has been covered by UK dance band Doctor Spin
    Doctor Spin

    Doctor Spin was a pseudonym used by Andrew Lloyd Webber and record producer Nigel Wright for their 1992 hit record single , "Korobeiniki". Their identities were not widely publicised at the time....
    , US alternative rock band Ozma
    Ozma (band)

    Ozma is a rock band from Pasadena, California. The band's sound is a mix of New Wave music?influenced power pop and rock with Casiotone-driven melodies and heavy guitar riffs....
    , Tokyo Ska Paradise Orchestra
    Tokyo Ska Paradise Orchestra

    Tokyo Ska Paradise Orchestra , commonly abbreviated by fans as "Skapara", is a Japanese Ska and Jazz band formed in 1985 by the percussionist Asa-Chang....
     and also the German
    Germany

    Germany , officially the Federal Republic of Germany , is a country in Central Europe. It is bordered to the north by the North Sea, Denmark, and the Baltic Sea; to the east by Poland and the Czech Republic; to the south by Austria and Switzerland; and to the west by France, Luxembourg, Belgium, and the Netherlands....
     techno
    Techno

    Techno is a form of electronic dance music that emerged in Detroit, Michigan, United States during the mid to late 1980s. The first recorded use of the word techno, in reference to a genre of music, was in 1988....
     group Scooter
    Scooter (band)

    Scooter are a Germany techno and hardcore techno band from Hamburg, who have sold over 14 million records and have earned 80 gold and platinum awards, they are also considered the most successful single-record German act with 21 top ten hits on their r?sum?....
     on their 2007 album
    Jumping All Over the World
    Jumping All Over the World

    Jumping All Over The World is the thirteenth studio album by Germany techno group Scooter , released in Germany in 2007. Five singles have been released from it: "The Question Is What Is The Question?", "And No Matches", "Jumping All Over the World ", a remix of "I'm Lonely " and a new version of "Jump That Rock!" entitled "Jump That Rock...
    . It was also sampled in "21 Concepts" by MC Lars
    MC Lars

    Andrew Robert Nielsen is an American rapping, known by his stage name MC Lars. He is the self-proclaimed originator of "post-punk laptop rap"....
    . Music A and B are also remixed and arranged for
    Super Smash Bros. Brawl
    Super Smash Bros. Brawl

    , is the third installment in the Super Smash Bros. series of gaming crossover fighting games, developed by Sora Ltd. and published by Nintendo for the Wii video game console....
    , and can be selected for the stage "Luigi's Mansion", as well as being used in custom stages. The song has also been remixed by South Korean artist Yahpp for Andamiro's "Pump it Up NX2" dance game, with the title of "Pumptris Quattro. An 8-bit version of the song can also be found on the game.
  • Music 1 in the NES version is "Dance of the Sugar Plum Fairy", a tune noted to be scene 14c of act two of The Nutcracker
    The Nutcracker

    The Nutcracker Op. 71, is a fairy tale-ballet in two acts, three scenes, by Pyotr Ilyich Tchaikovsky, composed in 1891?92. Alexandre Dumas, p?re's adaptation of the story "The Nutcracker and the Mouse King" by E....
    , composed by Tchaikovsky
    Pyotr Ilyich Tchaikovsky

    Pyotr Ilyich Tchaikovsky – ) was a Russian composer of the Romantic music era. He wrote some of the most popular concert and theatrical music in the current classical repertoire, including the ballets Swan Lake and Nutcracker, the 1812 Overture, his Piano Concerto No....
    .
  • One song in the BPS and Tengen versions is the "Kalinka", a famous Russian song written by Ivan Petrovich Larionov.
  • Music C in the Game Boy version is an arrangement of Johann Sebastian Bach
    Johann Sebastian Bach

    Johann Sebastian Bach was a German composer and organ whose sacred and secular works for choir, orchestra, and solo instruments drew together the strands of the Baroque music period and brought it to its ultimate maturity....
    's French Suite No. 3 In B Minor, BWV 814, V. Menuett - Trio.
  • 'Video Game Metal' band PowerGlove used Music A & B in the 1st track of their 2nd album, 'Total Pwnage', naming the song 'Tetris (Themes B And C)' It opens playing Theme B normally, quickly followed by the 2 themes being played on guitars with numerous effects.


Effect of Tetris on the brain

According to intensive research from Dr. Michael Crane and Dr. Richard Haier, et al. prolonged Tetris activity can also lead to more efficient brain activity during play. When first playing Tetris, brain function and activity increases, along with greater cerebral energy consumption, measured by glucose
Glucose

Glucose , a monosaccharide also known as grape sugar, blood sugar, or corn sugar, is a very important carbohydrate in biology....
 metabolic rate. As
Tetris players become more proficient, their brains show a reduced consumption of glucose, indicating more efficient brain activity for this task. The game can also cause a repetitive stress symptom in that the brain will involuntarily picture tetris combinations even when the player is not playing the game (the Tetris effect
Tetris effect

The Tetris effect is the ability of an activity to which people devote sufficient time and attention to begin overshadowing their thoughts, mental images, and dreams....
), although this can occur with any computer game showcasing repeated images or scenarios.

In January 2009, an Oxford University research group headed by Dr Emily Holmes reported in PLoS ONE that for healthy volunteers, playing ‘Tetris’ soon after viewing traumatic material in the laboratory reduced the number of flashbacks to those scenes in the following week. They believe that the computer game may disrupt the memories that are retained of the sights and sounds witnessed at the time, and which are later re-experienced through involuntary, distressing flashbacks of that moment. The group hope to develop this approach further as a potential intervention to reduce the flashbacks experienced in PTSD, but emphasised that these are only preliminary results.

Popular culture

Tetris
popularity has resulted in its appearance in the media. It was featured in two episodes of the video-game oriented cartoon Captain N: The Game Master
Captain N: The Game Master

Captain N: The Game Master is an United States animated television series that aired on United States television from 1989 to 1991 as part of the Saturday morning cartoon lineup on NBC....
. It was also referenced in the Muppet Babies episode "It's Only Pretendo", The Simpsons
The Simpsons

The Simpsons is an Television in the United States animated cartoon Situation comedy created by Matt Groening for the Fox Broadcasting Company....
 episode "Strong Arms of the Ma
Strong Arms of the Ma

"Strong Arms of the Ma" is the 300th episode of The Simpsons in production order; in broadcast order, this is the 298th....
" (where Homer uses the Tetris effect on his brain to fill his car with family and his shopping goods but fails to leave room for him) as well as "Thirty Minutes Over Tokyo
Thirty Minutes over Tokyo

"Thirty Minutes Over Tokyo" is the season finale of The Simpsons The Simpsons , which originally aired on May 16, 1999. Due to its stereotypical depiction of Japan and Japanese culture, this episode has never aired in Japan and is not included in the Japanese version of the Simpsons season ten DVD box set....
", Family Guy
Family Guy

Family Guy is an animated cartoon Television in the United States Situation comedy created by Seth MacFarlane that airs on Fox Broadcasting Company and regularly on other television networks in syndication....
 episode "Prick Up Your Ears
Prick Up Your Ears (Family Guy)

"Prick Up Your Ears" is the sixth episode of season five of Family Guy. The episode originally broadcast on 19 November 2006, with guest stars on the show including David Cross, Drew Barrymore and Gary Cole....
", and Futurama
Futurama

Futurama is an Animated cartoon United States Situation comedy created by Matt Groening, and developed by Groening and David X. Cohen for the Fox Broadcasting Company....
 episode "Fear of a Bot Planet
Fear of a Bot Planet

"Fear of a Bot Planet" is the fifth episode in season one of Futurama. It originally aired in North America on April 20, 1999. The episode was written by Heather Lombard and Evan Gore and directed by Peter Avanzino and Carlos Baeza....
." Commercials also occasionally parody the game. Police Academy: Mission to Moscow
Police Academy: Mission to Moscow

Police Academy: Mission to Moscow is a 1994 in film comedy crime film starring George Gaynes, Michael Winslow, David Graf, and Claire Forlani ....
 alluded to Tetris by depicting the Russians trying to hypnotize Americans through a puzzle video game referred to as "The Game" in the movie. On The Colbert Report
The Colbert Report

The Colbert Report is a Peabody Award- and Emmy Award-winning American news satire television program that airs from 11:30 p.m. to 12:00 midnight Eastern Time Zone each Monday through Thursday on Comedy Central in the United States and on both The Comedy Network and CTV Television Network in Canada....
, Stephen Colbert
Stephen Colbert

Stephen Tyrone Colbert is an United States comedian, Satire, actor and writer, known for his ironic style , and for his deadpan comedic delivery....
's right-wing character
Stephen Colbert (character)

Sir Stephen T. Colbert, Doctor of Fine Arts is the fictional character persona of political satire Stephen Colbert, portrayed most notably on The Colbert Report....
 mourned the passing of a more innocent time by remarking that in today's America, among other divisive factors, there is "no one game where when we close our eyes we still see the shapes falling." Even other videogames have shown tributes to Tetris such as the character Ai from NeoGeo Battle Colosseum, who can summon and attack characters with various Tetris blocks.

In 2007, video game website GameFAQs
GameFAQs

GameFAQs is a website that hosts FAQs and walkthroughs for video games. It was created in November 1995 by Jeff "CJayC" Veasey and was bought by CNET Networks in May 2003....
 hosted its sixth annual "Character Battle
GameFAQs

GameFAQs is a website that hosts FAQs and walkthroughs for video games. It was created in November 1995 by Jeff "CJayC" Veasey and was bought by CNET Networks in May 2003....
", in which the users nominate their favorite video game characters for a popularity contest in which characters participate. The L-shaped Tetris piece (or "L-Block" as it was called) entered the contest as a joke character, but on November 4, 2007, it won the contest.

In Japan, a hugely popular live-action game called Brain Wall
Brain Wall

is a component of the Japanese gameshow Tunnels no Minasan no Okage deshita . The show originated in Japan on the Fuji TV network and was first broadcast on 27 July 2006....
 (also referred to commonly as "Human Tetris") ran for a number of seasons on a Japanese variety show. Contestants would be assigned to teams (Red or Blue) and paired with recurring characters. Each team would then, in turn, face a wall of painted styrofoam with a Tetris-like shape carved out. The wall would advance on the contestant, who must pass through the opening by posing, squeezing or jumping. Later levels have a pool of water at the end of the run (the effect being to force the contestant into the pool if they fail.) The recurring characters provide running commentary, built-in rivalry and comic relief. Due to the game's popularity as a viral video
Viral video

A Viral phenomenon video is a video clip that gains widespread popularity through the process of Internet sharing, typically through email or Instant messaging, blogs and other media sharing websites....
, versions of the game have been exported around the world as a dedicated show, commonly known in English regions as Hole in the Wall.

In Thomas Pynchon's 2006 novel, Against the Day
Against the Day

Against the Day is a novel by Thomas Pynchon. The narrative takes place between the World's Columbian Exposition and the time immediately following World War I and features more than a hundred characters spread across the United States, Europe, Mexico, Central Asia, and "one or two places not strictly speaking on the map at all," accordin...
, mention is made of a "Captain Igor Padzhitnoff" (presumably pronounced the same as Pajitnov) whose preferred method of causing trouble was "to arrange for bricks and masonry, always in the four-block fragments which had become his 'signature,' to fall on and damage targets designated by his superiors".

In 2008, the New Zealand Army
New Zealand Army

New Zealand Army , is the land armed force of the Military of New Zealand and comprises around 4,500 regular personnel and 2,500 non-regulars and civilians....
 published recruitment advertisements depicting troop movements and supply drops in Tetris-style formations.

Awards

The long history of Tetris resulted in Guinness World Record awarding the franchise 9 world records in the Guinness World Records: Gamer's Edition. These records include, "Most Ported Video Game", "Game With the Most Official and Unofficial Variants", and "Longest Prison Sentence for Playing a Video Game", which is held by Faiz Chopdat, who was jailed for four months for playing Tetris on his cell phone while on a flight to Manchester, England. He refused to stop playing after being repeatedly warned by the cabin staff.

See also

  • Tetris effect
    Tetris effect

    The Tetris effect is the ability of an activity to which people devote sufficient time and attention to begin overshadowing their thoughts, mental images, and dreams....
  • List of Tetris variants
  • Game Over — 1993 book covering the legal wrangling with interviews from Nintendo staff
  • Lumines
    Lumines

    is a Puzzle video game based on sound and light patterns. Created by game designer Tetsuya Mizuguchi and his company, Q Entertainment, it was first released for the PlayStation Portable in Japan on December 12, and released in North America on March 23 ....


External links


  • , the official website maintained by The Tetris Company
  • , an online demonstration of an authentic Tetris game
  • , Story told by Vadim Gerasimov
    Vadim Gerasimov

    Vadim Gerasimov is an engineer at Google. In 1994-2003 Vadim worked and studied at the MIT Media Lab. At age 16 he was one of the original co-developers of the famous video game Tetris: he ported Alexey Pajitnov's original game to the PC architecture and the two later added features to the game....
    , who helped Pajitnov with Tetris early on
  • "", Scientific American
    Scientific American

    Scientific American is a popular science science magazine, published since August 28, 1845, making it one of the oldest continuously published magazines in the United States....
    , October 2002
  • , story and video by The Boston Globe Magazine, August 19, 2007.