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- Statement of RULES:
-
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-
- Go is a two player strategy board game. Players take turns putting black
- and white pieces (called stones) on a board. Stones are placed on the
- intersection of the lines on the board, and can be placed on the edge or
- in the corner. Once played a stone can not be moved, but may be captured
- by the other player. A player can pass at any time. Go is generally
- played on a 19 by 19 board, but smaller boards such as 9 by 9 or 13 by 13
- are used by beginners.
-
- The object of the game is to surround territory and/or your opponent's
- stones. The game ends when both players pass. Each intersection
- surrounded and each prisoner counts as a point. The player with the most
- points wins.
-
- An empty intersection adjacent to a stone (orthogonally) is called a
- liberty. For example, a single stone in the middle of the board has 4
- liberties. Stones that are adjacent form groups. Every group must have
- at least one liberty. When a group's last liberty is filled it is
- captured and removed from the board.
-
- It is illegal to make a move which recreates a preceding board position
- (to prevent loops). The simplest repeating position is called a ko.
-
- You must know how to make a living group. A live group is one that can't
- be captured. A liberty which is inside a group and completely surrounded
- is called an eye. A group with two eyes cannot be captured. With one
- eye, your opponent can fill all the outside liberties and then fill the
- eye (your last liberty), capturing you. With two eyes, he can't fill
- either one since the stone he puts down has no liberties. (It is also
- possible to live by sharing liberties with an enemy group, called seki).
- At the end of the game, any group which is not alive is assumed to be
- captured and its stones are added to the other side's prisoners.
-
- It is easiest to surround territory in the corner since you only have to
- make two walls and the edges of the board form the other two walls.
- Because of this, the first plays are usually near the corner, then play
- expands down the edges, and finally into the center. Playing on the
- third or fourth line from the edge is generally best in the opening
- (fuseki). Playing lower doesn't give you much territory, and if you play
- higher it is easy for your opponent to come in underneath you and make a
- living group.
-
- There has been an annual world Computer Go championship since 1986 in
- Taiwan with a $6,000 prize for the best program and up to $1.3 Million in
- prizes for beating strong human players.
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