yet another triple ko game

[macelee]

Simple solution: Do not reset the clock.

Just clear the board and restart the game. This means the players may be in byoyomi immediately, if the triple ko occurs late in the game. This will probably add a little time to the round, as the players may play more byoyomi periods, but not 3 hours.

Effectively, with this rule, the players have to get a result within the time limits given for the game, even if it restarts.

If I remember correctly, this is actually how the Chinese League handles such situation.

[emeraldemon]

Has there ever been a superko battle in a professional game? Sensei's Library says Chinese rules allow superko, is this true? Has it ever happened?

[oren]

Has there ever been a superko battle in a professional game? Sensei's Library says Chinese rules allow superko, is this true? Has it ever happened?

I have always seen Chinese handle it the same way as the Japanese and Korea do it with a no result when a cycle occurs.

[RobertJasiek]

According to Zhao Baolong 2p China, see http://home.snafu.de/jasiek/c2002com.pdf under Comments for Forbidden Repetition, in 100% of all professional Chinese tournaments, it is a tie. If you have different information, please state your sources and references! Rumours are not helpful.

[oren]

According to Zhao Baolong 2p China, see http://home.snafu.de/jasiek/c2002com.pdf under Comments for Forbidden Repetition, in 100% of all professional Chinese tournaments, it is a tie. If you have different information, please state your sources and references! Rumours are not helpful.

I don't particularly care if it's called 'draw' or 'no result'. The effect is that games are replayed.

https://gogameguru.com/quadruple-ko-chi ... qi-league/

[John Fairbairn]

According to Zhao Baolong 2p China, see http://home.snafu.de/jasiek/c2002com.pdf under Comments for Forbidden Repetition, in 100% of all professional Chinese tournaments, it is a tie.

This is meaningless unless you define what you mean by a tie (which also may not be what other people mean), but if you are maintaining that all Chinese pro tournaments handled triple ko in the same way, that is plain wrong. In the weekly Weiqi League Division A replays are normal, but in the B Division, which takes place as a single time-crowded event, triple ko has been counted as a half-point draw.

Has there ever been a superko battle in a professional game? Sensei's Library says Chinese rules allow superko, is this true? Has it ever happened?

Yes. Gu Li lost a game because of the special superko rule in an Ing-rules tournament, with a triple ko.

[RobertJasiek]

Thanks oren and John for establishing that Baolong's statement has been wrong. "tie" refers to the list of referee options in §20.3: "Depending on the type of the tournament, it is possible to make alternative rules, for example: no result, tie or additional competition." In this context, the meaning of "tie" is sufficiently clear and is different from "no result" and "additional competition".