[Computer-go] CrazyStone in the 5-dan footsteps of Zen

[Jouni Valkonen]

Jeff, it does not matter what ten humans does with the games, because they
are insignificant compared to bulk mass of games that gobots are playing.
therefore CS's it has no relevance for the rating system. Also 6 months is
very very short time, and when old games are starting to expire, KGS rating
will follow. See e.g. CS rating graph for reference.

KGS rating system works brilliantly and it is almost impossible to exploit,
because only way to exploit it is to make 8d? account and then go kibitzing
other people's games, but if there are only few games played, it has very
little influence for system as a whole. Therefore it is certainly better
rating system than in any other Chess and Go servers. (it is even better
than Glicko)

People observe KGS-rating system often problematic, because it punishes
most severely those who are weak players.

one improvement to rating system could be, that it would calculate separate
ratings for both, slow and blitz games.

6d for MC-gobot seems a bit optimistic, I would bet €5 that it won't happen
in 2012. 6d's are ridiculously strong. I calculated that in January, out of
56 games against 5d's CS won 48%. This is indeed impressive, although there
is long way to beat 6d's in even game.

     –Jouni

On 7 January 2012 21:03, Jeff Nowakowski <jeff at dilacero.org> wrote:

> On 01/02/2012 05:04 PM, Rémi Coulom wrote:
>
>>
>> Improving the KGS rank at 5d is very difficult. The current
>> experimental version of Crazy Stone wins 78% against Crazy Stone
>> 2011. That's less than one stone difference on KGS. But I am sure
>> both Zen and Crazy Stone will reach 6d in 2012.
>>
>
> There are two problems with the KGS rankings:
>
> One, they are weighed down a lot by past games from weaker versions.
>
> Two, you have to worry about people trying to game the system. I found
> strong evidence that one of the frequent CrazyStone players was losing
> games intentionally against a weaker bot, while at the same time winning
> frequently against CrazyStone.
>
> I brought this up with an admin, and he said they were looking into it,
> but several days have gone by and the player was not deranked (which is the
> usual punishment for gaming the system, and would remove past games from
> the rank calculation).
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://computer-go.org/pipermail/computer-go/attachments/20120107/5b9a2e96/attachment.html>