[Computer-go] Congratulations to Zen!

Nick Wedd maproom at gmail.com
Mon May 9 14:40:15 PDT 2016

A problem with McMahon is that the bots would all need KGS ratings.  I
can't assign ratings myself, the scheduler uses the ratings assigned by
KGS.  In the five tournaments held so far this year, there are sixteen bots
that have competed at least once: eight have been rated, eight not.


On 9 May 2016 at 22:16, Erik van der Werf <erikvanderwerf at gmail.com> wrote:

> Why not McMahon? (possibly with reduced handicap).  It works fine in human
> Go tournaments.
> IMO KGS Swiss is pretty boring for most of the time, and the scheduler
> often seems to have a lot of undesired influence on the final ranking. Also
> at this point I'm really not that interested any more to see some top
> engine win yet another bot tournament without serious competition; I'd be
> more interested to see how many stones they could give to the rest.
> Wouldn't it be fun to see how many stones AlphaGo could give to CS?
> E.
> On Mon, May 9, 2016 at 10:29 PM, "Ingo Althöfer" <3-Hirn-Verlag at gmx.de>
> wrote:
>> Hi Gian-Carlo,
>> I have thought carefully about your question on
>> determinning handicaps properly.
>> It seems you are very right with your doubts
>> > The first obvious question is then: how will you determine the
>> handicaps?
>> A naive approach would be to take the KGS ranks of the bots.
>> But even for those who really have this may be a problem. Namely,
>> the program may use other/stronger hardware in the tournament,
>> or may have made a jump in performance without playing openly
>> on KGS.
>> > As to the "large gaps in strength": the actual rating of Zen is
>> > 1 stone above abakus, which is 1 stone above HiraBot. That seems
>> > to conflict with your classification.
>> Yes, but only according to KGS ranks. My impression yesterday was
>> that Zen has made another jump in performance and is now more
>> an 8-dan than a 7-dan. But this is indeed only a personal opinion
>> and can not be taken for "serious" handicapping.
>> Concerning abakus and Hirabot, it is indeed my opinion that they
>> are at most 1 stone apart of each other.
>> In total: my handicap idea seems not to be practicable.
>> Ingo.
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Nick Wedd      maproom at gmail.com
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