Go (board game): Difference between revisions

Content deleted Content added

Inline

Latest revision as of 17:27, 30 August 2023

Go is a board game for two players. It is called Wei-k'i (or Wei-chi) in Chinese, Patok or Baduk in Korean and I-go in Japanese.^[1]

Go is played on a board with black and white game pieces called stones. Players take turns placing a stone of their color on intersections of a 19x19 square grid. The player with the black stones goes first. A normal Go board has 19 rows and columns of lines. Some players use 9x9 or 13x13 boards because smaller boards usually mean shorter, less complex games.

A game of Go ends when both players pass their turns without playing. This usually happens when adding another stone to the board doesn't change the score. The winner is the player whose stones surround more empty intersections (points). To that is added captured stones and komi. Komi are points added to the second player, which in this game is the white player.^[2] A game may also end when a player gives up and resigns.

In a game against a skilled player, a less skilled player may be given a "handicap" of extra stones on the board at the start of the game as well as playing black. These rules help make the game and final score fair for both players.

Rules

The four liberties (empty points that are up, down, left, or right) of a single black stone (A), as White reduces those liberties by one (B, C, and D). When Black has only one liberty left (D), that stone is "in atari".^[3] White may capture that stone (remove from board) with a play on its last liberty (at D-1).

Examples of when the Ko rule applies. If white player puts a stone in the green circles and captures a black stone, the other player cannot capture the white stone right away - they must play somewhere else on the board first.

Besides the order of play (Black plays first, then White plays, then Black plays, and so on) and handicap or scoring rules, there are only two rules in Go:

Rule 1 (the rule of liberty) is that every stone remaining on the board must have at least one open "point" (an intersection, called a "liberty") next to it (up, down, left, or right), or must be part of a connected group that has at least one such open point ("liberty") next to it. Stones or groups of stones which lose their last liberty are removed from the board.
Rule 2 (the "ko rule") is that the stones on the board must never repeat the way the stones were the turn before. Moves which would do so are forbidden, so only moves elsewhere on the board are allowed that turn. This is to prevent the game from going on forever.

Stones cannot be removed from the board except by the opponent surrounding it. A group of stones are all "alive" as long as one stone is next to an empty intersection. Stones with no liberties (no access to empty space) are captured and removed from the board. At the end of the game, the prisoners are usually deducted from the score of the player who lost them.

The second rule is called Ko (eternity). You can place stones on any clear intersection you want, as long it isn't taken off right after, or the board looks the same all over as it did before. This is to stop the game from going back and forth capturing the same stones forever. Players must make a move somewhere else on the board during a "ko fight" before they can re-capture a stone in the same position.

Its original Chinese name is "围棋" (= wei qi or wei chi). It is also popular in Japan, and its common name "Go" comes from Japanese. In Korea the game is called "baduk". In these three countries the game is an important part of the culture, like chess is in many western countries.

Go and chess are both board games and games of strategy. They both have no luck or secret information, unlike some other classic games like backgammon (dice are rolled) or poker and other card games which also have secret information.

There are many places to play Go on the Internet, as well as local clubs and national organizations in many countries around the world.^[4] A 2016 survey by the International Go Federation (IGF)^[5] found that there are over 20 million players around the world. Most players live in East Asia.^[6]

History

Go was invented in China but the specific time is not known. Some say it was invented more than 2,500 years ago and is the oldest board game still played today.^[7]^[8] The historian of board games, H.J.R. Murray, said:

Its age is often exaggerated; contemporary references to it only become frequent under the Song dynasty in China (AD 960–1279). It is significant that Chao Wu King, who lived between 970 and 1127, records how he enlarged the existing Chinese chessboard by dividing it lengthwise and across to produce a board of 19x19 points on which [the game] is now played. The game spread to Korea and Japan, where the first masters whose names has been recorded flourished between 1465–1500.
— H.J.R. Murray, ^[9]

Famous players

Players active in Japan

Go Seigen
Eio Sakata - He holds the honorary NHK Cup.
Kaku Takagawa
Hideyuki Fujisawa
Masao Sugiuchi - He used to be the oldest professional player during 2004 to 2017.
Masao Kato - former president of the International Go Federation
Utaro Hashimoto - founder of Kansai Ki-in, the largest Go organization in Osaka

Female players

Go to: Female Go players

Artificial intelligence

AlphaGo^[10]^[11]^[12] - made by DeepMind Technologies, a Google affiliate^[13]
Darkforest - made by Facebook,^[14] source codes are available on GitHub^[15]

References

↑ Murray H.J.R. 1951. A history of board games other then chess. Oxford University Press, p89.
↑ Iwamoto, Kaoru 1977. Go for Beginners. New York: Pantheon. ISBN 978-0-394-73331-9, p.18
↑ Cobb, William (2002). The book of Go. Sterling Publishers. ISBN 978-0-8069-2729-9, p.12.
↑ For example, there is the All Japan Student Go Federation, Nihon Ki-in (日本棋院) and Kansai Ki-in (関西棋院) in Japan. In USA, there is the American Go Association. The United Kingdom has the British Go Association.
↑ IGF is an international Go organization formed by national and continental members. For example, the European Go Federation has continental membership.
↑ The International Go Federation (February 2016). "Go Population Survey" (PDF). Retrieved 28 November 2018.
↑ "A Brief History of Go". American Go Association. Retrieved March 23, 2017.
↑ Shotwell, Peter (2008), "The Game of Go: Speculations on its Origins and Symbolism in Ancient China" (PDF), American Go Association
↑ Murray H.J.R. 1951. A history of board games other than chess.^p89–90 Oxford University Press.
↑ Wang, F. Y., Zhang, J. J., Zheng, X., Wang, X., Yuan, Y., Dai, X., ... & Yang, L. (2016). Where does AlphaGo go: From church-turing thesis to AlphaGo thesis and beyond. IEEE/CAA Journal of Automatica Sinica, 3(2), 113-120.
↑ Chen, J. X. (2016). The evolution of computing: AlphaGo. Computing in Science & Engineering, 18(4), 4-7.
↑ Chao, X., Kou, G., Li, T., & Peng, Y. (2018). Jie Ke versus AlphaGo: A ranking approach using decision making method for large-scale data with incomplete information. European Journal of Operational Research, 265(1), 239-247.
↑ Chang, H. S., Fu, M. C., Hu, J., & Marcus, S. I. (2016). Google Deep Mind's AlphaGo. OR/MS Today, 43(5), 24-29.
↑ Tian, Yuandong; Zhu, Yan (2015). "Better Computer Go Player with Neural Network and Long-term Prediction". arXiv:1511.06410v1 [cs.LG].
↑ github.com/facebookresearch/darkforestGo

Other websites

Sensei's Library, the largest Wiki about Go
Go - Citizendium
American Go Association

[1] Murray H.J.R. 1951. A history of board games other then chess. Oxford University Press, p89.

[2] Iwamoto, Kaoru 1977. Go for Beginners. New York: Pantheon. ISBN 978-0-394-73331-9, p.18

[3] Cobb, William (2002). The book of Go. Sterling Publishers. ISBN 978-0-8069-2729-9, p.12.

[4] For example, there is the All Japan Student Go Federation, Nihon Ki-in (日本棋院) and Kansai Ki-in (関西棋院) in Japan. In USA, there is the American Go Association. The United Kingdom has the British Go Association.

[5] IGF is an international Go organization formed by national and continental members. For example, the European Go Federation has continental membership.

[6] The International Go Federation (February 2016). "Go Population Survey" (PDF). Retrieved 28 November 2018.

[7] "A Brief History of Go". American Go Association. Retrieved March 23, 2017.

[8] Shotwell, Peter (2008), "The Game of Go: Speculations on its Origins and Symbolism in Ancient China" (PDF), American Go Association

[9] Murray H.J.R. 1951. A history of board games other than chess.^p89–90 Oxford University Press.

[10] Wang, F. Y., Zhang, J. J., Zheng, X., Wang, X., Yuan, Y., Dai, X., ... & Yang, L. (2016). Where does AlphaGo go: From church-turing thesis to AlphaGo thesis and beyond. IEEE/CAA Journal of Automatica Sinica, 3(2), 113-120.

[11] Chen, J. X. (2016). The evolution of computing: AlphaGo. Computing in Science & Engineering, 18(4), 4-7.

[12] Chao, X., Kou, G., Li, T., & Peng, Y. (2018). Jie Ke versus AlphaGo: A ranking approach using decision making method for large-scale data with incomplete information. European Journal of Operational Research, 265(1), 239-247.

[13] Chang, H. S., Fu, M. C., Hu, J., & Marcus, S. I. (2016). Google Deep Mind's AlphaGo. OR/MS Today, 43(5), 24-29.

[facebook-paper2-14] Tian, Yuandong; Zhu, Yan (2015). "Better Computer Go Player with Neural Network and Long-term Prediction". arXiv:1511.06410v1 [cs.LG].

[15] thub.com/facebookresearch/darkforestGo

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

@@ Line 1: / Line 1: @@
+[[File:FloorGoban.JPG|thumb|250px|A game of Go]]
-{{multiple issues|
+[[File:Gobildalt.jpg|thumb|250px|[[Geisha]] playing Go]]
-{{confusing|date=May 2018}}
-{{copyedit|date=May 2018}}
-{{more sources|date=May 2018}}
-}}
-[[File:Go board.jpg|thumb|250px|A game of Go.]]
-'''Go''' (called ''I-Go'' in [[Japanese language|Japanese]], ''Wei-chi'' in [[Chinese language|Chinese]] and ''Baduk'' in [[Korean language|Korean]]) is a [[board game]] for two players. It is played on a board with [[black]] and [[white]] game pieces called [[stone]]s. Players take turns placing a stone of their color on intersections of a 19x19 square grid. The player with the black stones goes first. A normal Go board has 19 rows and columns of lines. Some players use 9x9 or 13x13 boards too, such as new players, because smaller boards usually mean shorter, less complex games.
+'''Go''' is a [[board game]] for two players. It is called ''Wei-k'i'' (or Wei-chi) in [[Chinese language|Chinese]], ''Patok'' or ''Baduk'' in [[Korean language|Korean]] and  ''I-go'' in [[Japanese language|Japanese]].<ref>Murray H.J.R. 1951. ''A history of board games other then chess''. Oxford University Press, p89.</ref>
-A game of Go ends when both players pass their turns without playing. This usually happens when adding another stone to the board doesn't change the score. The winner is the player whose stones surround more empty intersections (points), along with captured stones and ''komi'' (extra points added to the score of the player using the white stones because the player with black stones has the advantage of going first).<ref>Iwamoto, p.18</ref> A game can also end when a player gives up and resigns if they don't think they can win.
+Go is played on a board with [[black]] and [[white]] game pieces called [[stone]]s. Players take turns placing a stone of their color on intersections of a 19x19 square grid. The player with the black stones goes first. A normal Go board has 19 rows and columns of lines. Some players use 9x9 or 13x13 boards because smaller boards usually mean shorter, less complex games.
+A game of Go ends when both players pass their turns without playing. This usually happens when adding another stone to the board doesn't change the score. The winner is the player whose stones surround more empty intersections (points). To that is added captured stones and ''komi''. Komi are points added to the second player, which in this game is the white player.<ref>Iwamoto, Kaoru 1977. ''Go for Beginners''. New York: Pantheon. ISBN 978-0-394-73331-9, p.18</ref> A game may also end when a player gives up and resigns.
 In a game against a [[Skill|skilled]] player, a less skilled player may be given a "handicap" of extra stones on the board at the start of the game as well as playing black. These rules help make the game and final score fair for both players.
 == Rules ==
-[[File:Golibs.png|thumb|The four liberties (empty points that are up, down, left, or right) of a single black stone (A), as White reduces those liberties by one (B, C, and D). When Black has only one liberty left (D), that stone is "in atari".<ref>Cobb p.12</ref> White may capture that stone (remove from board) with a play on its last liberty (at D-1).]]
+[[File:Golibs.png|thumb|The four liberties (empty points that are up, down, left, or right) of a single black stone (A), as White reduces those liberties by one (B, C, and D). When Black has only one liberty left (D), that stone is "in atari".<ref>Cobb, William (2002). ''The book of Go''. Sterling Publishers. ISBN 978-0-8069-2729-9, p.12.</ref> White may capture that stone (remove from board) with a play on its last liberty (at D-1).]]
 [[File:Ko (rule).png|thumb|Examples of when the Ko rule applies. If white player puts a stone in the green circles and captures a black stone, the other player cannot capture the white stone right away - they must play somewhere else on the board first.]]
 Besides the order of play (Black plays first, then White plays, then Black plays, and so on) and handicap or scoring rules, there are only two rules in Go:
@@ Line 19: / Line 18: @@
 * '''Rule 2''' (the "ko rule") is that ''the stones on the board must never repeat the way the stones were the turn before. Moves which would do so are forbidden, so only moves elsewhere on the board are allowed that turn. This is to prevent the game from going on forever.''
-Some Go teachers tell their students that the stones represent armies. If the armies don't have empty spaces to move into, they can't survive against the enemy armies. Therefore, stones of one color that are completely surrounded by another color are captured and removed from the board. This is the only time that a stone can be moved after a player puts it on the board. Stones share liberties, so that a group of stones are all "alive" as long as one stone is next to an empty intersection. Stones with no liberties (no access to empty space) are captured and removed from the board. At the end of the game, the prisoners are usually deducted from the score of the player who lost them.
+Stones cannot be removed from the board except by the opponent surrounding it. A group of stones are all "alive" as long as one stone is next to an empty intersection. Stones with no liberties (no access to empty space) are captured and removed from the board. At the end of the game, the prisoners are usually deducted from the score of the player who lost them.
 The second rule is called ''Ko'' ([[eternity]]). You can place stones on any clear intersection you want, as long it isn't taken off right after, or the board looks the same all over as it did before. This is to stop the game from going back and forth capturing the same stones forever. Players must make a move somewhere else on the board during a "ko fight" before they can re-capture a stone in the same position.
@@ Line 25: / Line 24: @@
 Its original [[Chinese language|Chinese]] name is "{{lang|zh|围棋}}" (= wei qi or wei chi). It is also popular in [[Japan]], and its common name "Go" comes from [[Japanese language|Japanese]]. In [[Korea]] the game is called "baduk". In these three countries the game is an important part of the culture, like [[chess]] is in many western countries.
-Go and [[chess]] are both ''[[board game]]s'' and ''[[strategy game]]s'', though both may be used as [[gambling]] games as well. They both have no luck or secret information, unlike some other classic games like [[backgammon]] ([[dice]] are rolled) or [[poker]] and other card games which also have secret information.
+Go and [[chess]] are both ''[[board game]]s'' and games of [[strategy]]. They both have no luck or secret information, unlike some other classic games like [[backgammon]] ([[dice]] are rolled) or [[poker]] and other card games which also have secret information.
-There are many places to play Go on the Internet, as well as local clubs and national organizations in many countries around the world<ref>For example, there is the [[Nihon Ki-in]] (日本棋院) and [[Kansai Ki-in]] (関西棋院) in Japan. In USA, there is the [[American Go Association]].</ref>. A 2016 survey by the [[International Go Federation]] found that there are over 20 million players around the world. Most players live in [[East Asia]]<ref>{{Cite web|url=http://www.intergofed.org/wp-content/uploads/2016/06/2016_Go_population_report.pdf|title=Go Population Survey|last=The International Go Federation|first=|date=February 2016|website=|archive-url=|archive-date=|dead-url=|access-date=28 November 2018}}</ref>.
+There are many places to play Go on the Internet, as well as local clubs and national organizations in many countries around the world.<ref>For example, there is the [[All Japan Student Go Federation]], [[Nihon Ki-in]] (日本棋院) and [[Kansai Ki-in]] (関西棋院) in Japan. In USA, there is the [[American Go Association]]. The United Kingdom has the [[British Go Association]].</ref> A 2016 survey by the [[International Go Federation]] (IGF)<ref>IGF is an international Go organization formed by national and continental members. For example, the [[European Go Federation]] has continental membership.</ref> found that there are over 20 million players around the world. Most players live in [[East Asia]].<ref>{{Cite web|url=http://www.intergofed.org/wp-content/uploads/2016/06/2016_Go_population_report.pdf|title=Go Population Survey|last=The International Go Federation|date=February 2016|access-date=28 November 2018}}</ref>
-<br />
 ==History==
 Go was invented in [[China]] but the specific time is not known. Some say it was invented more than 2,500 years ago and is the oldest board game still played today.<ref>{{cite web|url=http://www.usgo.org/brief-history-go|title=A Brief History of Go|publisher=American Go Association|access-date=March 23, 2017}}</ref><ref>{{Citation|last=Shotwell|first=Peter|title="The Game of Go: Speculations on its Origins and Symbolism in Ancient China"|url=http://www.usgo.org/files/bh_library/originsofgo.pdf|year=2008|publisher=American Go Association}}</ref> The historian of board games, H.J.R. Murray, said:
-{{Quote|text=Its age is often exaggerated; contemporary references to it only become frequent under the [[Song dynasty]] in China (<small>AD</small> 960–1279). It is significant that Chao Wu King, who lived between 970 and 1127, records how he enlarged the existing Chinese chessboard by dividing it lengthwise and across to produce a board of 19x19 points on which [the game] is now played. The game spread to Korea and Japan, where the first masters whose names has been recorded flourished between 1465–1500.|author=H.J.R. Murray|source=<ref>Murray H.J.R. 1951. ''The history of board games other than chess''.<sup>p89–90</sup> [[Oxford]].</ref>}}
+{{Quote|text=Its age is often exaggerated; contemporary references to it only become frequent under the [[Song dynasty]] in China (<small>AD</small> 960–1279). It is significant that Chao Wu King, who lived between 970 and 1127, records how he enlarged the existing Chinese chessboard by dividing it lengthwise and across to produce a board of 19x19 points on which [the game] is now played. The game spread to Korea and Japan, where the first masters whose names has been recorded flourished between 1465–1500.|author=H.J.R. Murray|source=<ref>Murray H.J.R. 1951. ''A history of board games other than chess''.<sup>p89–90</sup> Oxford University Press.</ref>}}
-==References==
-{{Reflist}}
 ==Famous players==
@@ Line 41: / Line 36: @@
 <!--alphabetical order-->
 * [[Go Seigen]]
-* [[Eio Sakata]] - He holds the honorary [[NHK]] Cup
+* [[Eio Sakata]] - He holds the honorary [[NHK]] Cup.
 * [[Kaku Takagawa]]
 * [[Hideyuki Fujisawa]]
-* [[Masao Sugiuchi]] - He used to be the oldest professional player during 2004 to 2017
+* [[Masao Sugiuchi]] - He used to be the oldest professional player during 2004 to 2017.
 * [[Masao Kato]] - former president of the International Go Federation
 * [[Utaro Hashimoto]] - founder of [[Kansai Ki-in]], the largest Go organization in [[Osaka]]
 ====Female players====
+Go to: [[Female Go players]]
-<!--alphabetical order-->
-* [[Asami Ueno]]
-* [[Ayumi Suzuki]]
-* [[Chiaki Mukai]]
-* [[Izumi Kobayashi]]
-* [[Kaori Chinen]]
-* [[Mika Yoshida]]
-* [[Reiko Kobayashi]]
-* [[Rina Fujisawa]]
-* [[Sachiko Hara]]
-* [[Sachiko Honda]]
-* [[Tomoko Ogawa]]
-* [[Xie Yimin]] - she was born in [[Taiwan]]
-* [[Yukari Yoshihara]]
-===Other regions===
+===Artificial intelligence===
+* [[AlphaGo]]<ref>Wang, F. Y., Zhang, J. J., Zheng, X., Wang, X., Yuan, Y., Dai, X., ... & Yang, L. (2016). Where does AlphaGo go: From church-turing thesis to AlphaGo thesis and beyond. IEEE/CAA Journal of Automatica Sinica, 3(2), 113-120.</ref><ref>Chen, J. X. (2016). The evolution of computing: AlphaGo. Computing in Science & Engineering, 18(4), 4-7.</ref><ref>Chao, X., Kou, G., Li, T., & Peng, Y. (2018). Jie Ke versus AlphaGo: A ranking approach using decision making method for large-scale data with incomplete information. European Journal of Operational Research, 265(1), 239-247.</ref> - made by DeepMind Technologies, a [[Google]] affiliate<ref>Chang, H. S., Fu, M. C., Hu, J., & Marcus, S. I. (2016). Google Deep Mind's AlphaGo. OR/MS Today, 43(5), 24-29.</ref>
-<!--alphabetical order-->
+* Darkforest - made by [[Facebook]],<ref name="facebook-paper2">{{Cite arXiv|eprint=1511.06410v1|last1=Tian|first1=Yuandong|title=Better Computer Go Player with Neural Network and Long-term Prediction|last2=Zhu|first2=Yan|class=cs.LG|year=2015}}</ref> source codes are available on [[GitHub]]<ref>{{URL|https://github.com/facebookresearch/darkforestGo}}</ref>
-* [[Joanne Missingham]]
-* [[Rui Naiwei]]
+==References==
+{{Reflist|2}}
 == Other websites ==
+{{Commons category|Go (game)}}
-* [http://senseis.xmp.net Sensei's Library], the largest Wiki about Go
+* [http://senseis.xmp.net Sensei's Library], the largest [[Wiki]] about Go
-* [http://en.citizendium.org/wiki/Go Go] Citizendium
+* [http://en.citizendium.org/wiki/Go Go] - [[Citizendium]]
 *[http://www.usgo.org/ American Go Association]
 {{authority control}}
-[[Category:Board games]]
-[[Category:Culture]]
+[[Category:Go (game)| ]]