Editing Rules of Go (section)

====Positions====
* [[#Positions|Rule 4]].<ref>[https://tromp.github.io/go.html Tromp–Taylor rules of go]: "Each point on the grid may be colored black, white or empty."</ref><ref>[http://home.snafu.de/jasiek/siming.html Simplified Ing Rules] of the EGF: "The position is the distribution of black, white, and no stones on all the unique intersections of the grid. For a play, this is given after all its removals."</ref> '''Positions:''' At any time in the game, each intersection on the board is in one and only one of the following three ''states'': 1) empty; 2) occupied by a black stone; or 3) occupied by a white stone. A ''position'' consists of an indication of the state of each intersection. 
** [[#Board|Definition]]. '''("Adjacent")''' Two intersections are said to be ''adjacent'' if they are connected by a horizontal or vertical line with no other intersections between them.<ref name="NZRules">{{cite web |title=New Zealand Rules of Go |url=http://go.org.nz/index.php/about-go/new-zealand-rules |website=go.org.nz |publisher=New Zealand Go Society |access-date=22 June 2018}}</ref> Note that intersections which are one away from each other diagonally, i.e., intersections that are connected by one horizontal and one vertical line, are not considered adjacent. 
** [[#Connected stones and points|Definition]].<ref>[http://home.snafu.de/jasiek/siming.html Simplified Ing Rules] of the EGF: "Stones of the same colour are connected if they are adjacent or if there is a chain of adjacent stones of their colour between them. Likewise, empty intersections are connected if they are adjacent or if there is a chain of adjacent empty intersections between them."</ref> '''("Connected")''' In a given position, two placed stones of the same color (or two empty intersections) are said to be ''connected'' if it is possible to draw a path from one intersection to the other by passing through only adjacent intersections of the same state (empty, occupied by white, or occupied by black).
** [[#Liberties|Definition]]. '''("Liberty")''' In a given position, a ''liberty'' of a placed stone is an empty intersection adjacent to that stone or adjacent to a stone which is connected to that stone.<ref name="NZRules"/>