A game of Go in progress.
Go is a board game for two players, noted for being rich in strategic complexity despite its simple rules. It is known in Japan as 碁 or 囲碁 (Go
), in China as 围棋 (Wéiqí
), and in Korea as 바둑 (Baduk
). Go reached the West through Japan, which is why it is commonly known internationally by its Japanese name, and much of its technical vocabulary is Japanese.
The game is played by two players who alternately place circular black and white pieces called "stones" on the vacant intersections of a grid of 19×19 lines. Once placed on the board, stones cannot be moved elsewhere, unless they are surrounded and captured by the opponent's stones. The object of the game is to control a larger area of the board than the opponent.
Placing stones close together helps them support each other and avoid capture. On the other hand, placing stones far apart creates influence across more of the board. Part of the strategic difficulty of the game stems from finding a balance between such conflicting interests. Players strive to serve both defensive and offensive purposes and choose between tactical urgency and strategic plans.
The origins of Go are Shrouded in Myth
. It originated in China more than 2,500 years ago, and although it is not known exactly when the game was invented, by the 5th century BC it was already a popular pastime. The oldest surviving written reference is in the Analects of Confucius (c. 500 BCE) by which time the game was already well-known. Archaeology suggests an origin somewhere in the 2nd millenium BCE, so Go is probably Older Than Dirt
. Archaeological evidence indicates that the early game was played on a board with a 17×17 grid, but by the time that the game spread to Korea and Japan in about the 7th century, the 19x19 board had become standard. The game is most popular in East Asia, but spread to other parts of the world. A conservative estimate places the number of Go players worldwide at approximately 27 million.
If you want a cursory animated introduction, try watching Hikaru no Go
, which may have inspired many to play Go. For much more information check either the other wiki
or visit Sensei's Library
, a wiki devoted to the game
Essays have been written about the differences between Go and Chess
. Broadly speaking Go has simpler rules and is easier to learn then Chess, but is far more open in its possibilities. We can create computers that have mastered Chess, but Go eludes them. Some theorize this is for more than simply the size of the board adding astronomically more possible games of Go. Yet you could probably teach a five year old to play Go in an hour.
Not to be confused with the 1999 film Doug Liman film Go
, the short-lived early '80s television game-show
, the travel-themed family board-game published by Waddingtons, or the programming language developed by Google.
Sometimes used as the game of choice for the trope Smart People Play Chess
Go provides examples of a number of the tropes to which this wiki is dedicated:
- Artificial Stupidity: The best Go-playing computer programs are roughly on a par with fairly strong amateurs. Really strong professional players are still well beyond their reach.
- The best computer programs can beat pros on the 9x9 board, and that size is slowly increasing.
- However the computer used close to five times more time than the professional and only won one game out of three. The problem is that it gets exponentially harder as the board size increases. To the point where professionals still beat computers on 19x19 boards, even when the computer has a 9 stone handicap.
- As of 2012, however, a computer has recently beaten a famous professional named Takemiya Masaki with only a 4-stone handicap, which seems to indicate an increase in the playing level of the best computer programs.
- Crazy-Prepared: Serious players study and memorise many sequences of best play, known as joseki. Strong players can usually reel off entire games from memory.
- Flipping the Table: A traditional (if humorous) way to Ragequit is known as the "nuclear tesuji," where the losing player flings the board at the wall, uppercuts the winner and storms out. (Troper General's Warning: Don't actually try this, it's not considered good sportsmanship anymore.)
- Some books on Go depict on their covers paintings of samurai doing this.
- Idiosyncratic Episode Naming: Some famous games have exotic titles like "The Ear-Reddening Game", and probably most famous of all, "The Blood-Vomiting Game" (See Serious Business below).
- Kyu and Dan Ranks: Go players are ranked according to their playing strength. Complete beginners are ranked at roughly 30-35 kyu (30-35k), and as they improve, their rating reduces, so a 10k player is stronger than a 15k player. This is because kyu ranks are based on the number of handicap stones players would need to win half their games against a First Dan player (See PVP Balanced below), and the stronger player needs a smaller handicap. After winning promotion to First Kyu (1k), the highest kyu rank, the next step is Shodan or First Dan (1d), and dan ranks rise with greater strength from First to Ninth Dan, the highest amateur rank. Professional players have their own ranking system, rising from First (1p) to Ninth (9p) Dan. Go may have been the first game or sport to use the kyu/dan system.
- Master-Apprentice Chain: The Four Houses of the Edo period were each a lineage of Go study, where the master would select and adopt a successor from among his pupils, who would in turn become head of the house and adopt his successor.
- Metagame: Thousands of pages of analysis have been written over the centuries. The only game with a comparable literature is Chess.
- Play-by-Post Games: Nowadays internet Go servers, and e-mail, have largely replaced this. Playing Go on-line brings many Video Game tropes with it, including:
- Scrub: Some players feel entitled to assume that their way is the only legitimate way to play, and anything else is cheating. The particularly applies to the choice of Japanese vs. Chinese rules and scoring.
- Ragequit: Some players abandon losing games without resigning to avoid having the loss affect their rank on the server. This is known as "escaping", and the way in which "escapers" are handled by some Go servers is controversial.
- Also, a little trick for those bored in class: take a math notebook page, mark the borders of the board on the page’s square, take two pencils and erasers to mark the stones and score, pass the page between players, and voilà, classroom Go!
- Pronoun Trouble: When writing about Go (in the abstract rather than when referring to specific players), it is customary to refer to one player as "he" and the other as "she". Unfortunately some believe black should be male, and white female, while others appeal to ancient Taoist tradition and argue for the opposite.
- PVP Balanced: Enormous attention is given to giving both players an even chance:
- Although each player has identical resources, black customarily plays first, which gives him an advantage. In a game between equally-strong players, white receives an scoring allowance called komi to compensate her for this. The exact size of komi is periodically adjusted based on exhaustive analysis of professional game statistics.
- In a game between players of different strength, the weaker player takes black, and komi may be reduced or eliminated. If the difference in strength is sufficient, black may also be allowed to place a number of "handicap stones" on the board before the game begins, to give him a head start. The idea is to allow both players to share an enjoyable game, so the size of the handicap is adjusted to their respective playing strengths. This leads to differences in playing strength being expressed in terms of "stones", as in: "Ben is four stones stronger than Bill". The handicap is traditionally calculated by comparing the players' Kyu and Dan Ranks (see above).
- Japanese rules require the handicap stones to be placed on specific points, the first nine of which are normally marked on the board as the hoshi (star) points. Japanese rules specify patterns for handicaps of up to seventeen stones, but various unofficial patterns have been published for handicaps of up to forty-one stones, the traditionally-accepted difference between a complete beginner and the strongest amateur player. Chinese rules allow free placement of handicap stones, so potentially there is no limit to the size of handicap that could be given.
- An alternative to very large handicaps is to play on a smaller board (13x13 and 9x9 being by far the most common sizes). Handicap stones have a much greater effect on a smaller board (a common rule of thumb is that one handicap stone on 13x13 is approximately equivalent to three in 19x19), so the game can be played evenly without the need for so many of them, making the play more sensible.
- Serious Business: Oh so very much:
- Full-time professional players competing for multi-thousand dollar prizes.
- Well-attended after-school classes for school-children.
- Full-time students studying for examination tournaments to qualify to become professionals.
- Extensive television coverage of pro games, including dedicated channels!
- Pro games lasting up to sixteen hours over two days (they used to be much longer).
- Unwritten but deeply-rooted conventions of proper behaviour and play, over which there is much discussion.
- As the board was being cleared after the legendary four-day "Blood-Vomiting Game" of 1835, the defeated player Akaboshi Intetsu, collapsed coughing up blood, and died ("within a few months" though).
- Strategy Schmategy: One Go proverb states that "Learning joseki drops two stones strength, studying joseki gains four stones strength." In other words, a complete newbie will usually play better than someone who has learned the standard patterns of play, but hasn't yet learned how and why they're used in an actual game.
- Tournament Play: Professional tournaments are regarded as the highest form of the game by many players, and success in them is essential to the careers of pro players. Amateur national rankings are also based on performance in tournaments.
- Trying to Catch Me Fighting Dirty: While legal, intentionally using time trouble or relying on psychological maneuvers or most forms of trick play to defeat an opponent are seen as rather crass by most authorities.
- Why Mao Changed His Name: The Chinese name for the game is 围棋. This used to be romanised as wei-chi, but since the adoption of pinyin romanisation, it is written wéiqí. The correct pronunciation remains (roughly) "way-chee".