Double ko seki

    Keywords: Ko

This page explains the specifics of a double ko seki. It is already explained at the double ko page, since it is a major application of the double ko. It is also a special case of a seki, so it deserves a separate page.


[Diagram]

Double Ko Seki

This is a double ko seki. If Black takes at a White takes at b, and vice versa. Then the first player to take cannot continue locally.

Under Japanese rules, this seki, like all seki, provides no points to either player.

[Diagram]

Another Double Ko Seki



Double ko seki provides an unlimited number of unremovable threats, which is a reason why some people consider that superko should be applied in most rulesets. (See also Moonshine Life)

See Double Ko, Seki.


This is a copy of the living page "Double ko seki" at Sensei's Library.
(OC) 2008 the Authors, published under the OpenContent License V1.0.
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