GO VS SUGOROKU

Go is an abstract strategy board game for two players in which the aim is to surround more territory than the opponent. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go and over 20 million current players, the majority of whom live in East Asia. The playing pieces are called stones. One player uses the white stones and the other, black. The players take turns placing the stones on the vacant intersections (points) of a board. Once placed on the board, stones may not be moved, but stones are removed from the board if the stone (or group of stones) is surrounded by opposing stones on all orthogonally-adjacent points, in which case the stone is captured. The game proceeds until neither player wishes to make another move. When a game concludes, the winner is determined by counting each player's surrounded territory along with captured stones and komi (points added to the score of the player with the white stones as compensation for playing second). Games may also be terminated by resignation. The standard Go board has a 19×19 grid of lines, containing 361 points. Beginners often play on smaller 9×9 and 13×13 boards, and archaeological evidence shows that the game was played in earlier centuries on a board with a 17×17 grid. However, boards with a 19×19 grid had become standard by the time the game reached Korea in the 5th century CE and Japan in the 7th century CE. Go was considered one of the four essential arts of the cultured aristocratic Chinese scholars in antiquity. The earliest written reference to the game is generally recognized as the historical annal Zuo Zhuan (c. 4th century BCE). Despite its relatively simple rules, Go is extremely complex. Compared to chess, Go has both a larger board with more scope for play and longer games and, on average, many more alternatives to consider per move. The number of legal board positions in Go has been calculated to be approximately 2.1 × 10170, which is vastly greater than the number of atoms in the known, observable universe, estimated to be about 1 × 1080.

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Sugoroku (雙六 or 双六) (literally 'double six') refers to two different forms of a Japanese board game: ban-sugoroku (盤双六, 'board-sugoroku') which is similar to western backgammon, and e-sugoroku (絵双六, 'picture-sugoroku') which is similar to western Snakes and Ladders. The game is thought to have been introduced from China (where it was known as Shuanglu) into Japan in the sixth century. It is known that in the centuries following the game's introduction into Japan it was made illegal several times, most prominently in 689 and 754. This is because the simple and luck-based nature of sugoroku made it an ideal gambling game. This version of sugoroku and records of playing for gambling continuously appeared until early Edo era. In early Edo-era, a new and quick gambling game called Chō-han (丁半) appeared and using sugoroku for gambling quickly dwindled. This variant of the backgammon family has died out in Japan and most other countries, with the Western style modern backgammon (with doubling-cube) having some avid players. A simpler e-sugoroku, with rules similar to snakes and ladders, appeared as early as late 13th century and was made popular due to the cheap and elaborate wooden block printing technology of the Edo period. Thousands of variations of boards were made with pictures and themes from religion, political, actors, and even adult material. In the Meiji and later periods, this variation of the game remained popular and was often included in child-oriented magazines. With ban-sugoroku being obsolete, today the word sugoroku almost always means e-sugoroku.

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