Editing Rules of Go (section)

====Play====
* [[#Initial position|Rule 5]].<ref>[https://www.cs.cmu.edu/~wjh/go/rules/AGA.html Official AGA Rules of Go], Rule 1: "The board is initially vacant [...]"</ref> '''Initial position:''' At the beginning of the game, the board is empty.
* [[#Alternation of turns|Rule 6]].<ref>[https://www.cs.cmu.edu/~wjh/go/rules/AGA.html Official AGA Rules of Go], Rule 2: "The players alternate in moving, with Black playing first."</ref> '''Turns:''' Black moves first. The players alternate thereafter.
* [[#Moving|Rule 7]].<ref name="NZRules"/> '''Moving:''' When it is their turn, a player may either ''pass'' (by announcing "pass" and performing no action) or ''play''. A play consists of the following steps (performed in the prescribed order):
** [[#Placing a stone on the board|Step 1]]. (Playing a stone) Placing a stone of their color on an empty intersection (chosen subject to Rule 8 and, if it is in effect, to Optional Rule 7A). It can never be moved to another intersection after being played.
** [[#Capture|Step 2]]. (Capture) Removing from the board any stones of their opponent's color that have no liberties. 
** [[#Self-capture|Step 3]]. (Self-capture) Removing from the board any stones of their own color that have no liberties. 
* ''[[#Self-capture|Optional Rule 7A]].''<ref>[https://www.cs.cmu.edu/~wjh/go/rules/AGA.html Official AGA Rules of Go], Rule 5: "It is ''illegal'' for a player to move so as to create a string of their own stones which is completely surrounded (without liberties) after any surrounded opposing stones are captured."</ref> ''Prohibition of suicide: A play is illegal if one or more stones of that player's color would be removed in Step 3 of that play.''
* [[#Ko|Rule 8]].<ref>[http://home.snafu.de/jasiek/siming.html Simplified Ing Rules] of the EGF: "A play may not recreate a previous position from the game."</ref> '''Prohibition of repetition:''' A play is illegal if it would have the effect (after all steps of the play have been completed) of creating a position that has occurred previously in the game.