Situational Superko

    Keywords: Ko, Rules

A situational superko rule prohibits the repetition of the same situation.

Two examples of situational superko rules:

AGA Rules state: It is illegal to play in such a way as to recreate a previous board position from the game, with the same player to play.

New Zealand Rules state (reworded): It is illegal to play so that the resulting board position repeats the whole board position as it was after any of that player's previous moves.

Since New Zealand rules allow self-capture, the wording of their rule allows either player to play to create the empty board. AGA wording, plus self-capture would allow black, but not white to do so.

(Digression - A pass is a move in New Zealand Rules, so its not the same as Natural SSK)

See also:

Situational Superko last edited by on January 18, 2013 - 20:10
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