Triple Ko

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  Difficulty: Beginner   Keywords: Ko, Rules

In a Triple Ko, there are three Kos on the board. all in play at the same time. Often they are part of the same configuration, as in this example.

[Diagram]

An example of triple ko

Say you have the kos a, b and c. You take a, your opponent takes b, you take c. Your opponent retakes a, you retake b and he retakes c. With the simple ko rule, you could now retake a again, and the cycle would go on for ever.



Of course, this is undesirable. Traditionally, a triple ko meant no result, and was considered unlucky.

In October 1998, the [ext] fourth game of the Meijin title match ended without result when neither O Rissei nor Cho Chikun would yield in a triple ko.

Several modern rulesets handle it with a superko rule.

See the /Discussion page for more.

[ext] Historical triple ko game


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This is a copy of the living page "Triple Ko" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.
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