[Computer-go] Congratulations to Zen!

Nick Wedd nick at maproom.co.uk
Wed Apr 9 13:45:20 PDT 2014


On 09/04/2014 20:58, Erik van der Werf wrote:
> (1) We have pretty good indications that 7.0 is optimal for 9x9. (2)
> There is no reason to assume perfect komi to increase with boardsize,
> and (3) for 19x19 (with area scoring) quite likely it should be 5.0 or
> 7.0 (so the slope from 9x9 to 19x19 is probably quite flat).
>
> Computers are still fairly weak on 13x13, so it's not urgent yet, but
> if I'd have to make an educated guess I'd say 7.0 is best for 13x13.
> Further, if draws are considered undesirable I'd prefer 6.5 over 7.5
> because I don't like first player disadvantage.

We decided the komi for use in KGS 9x9 bot tournament by majority vote.
maybe we should do the same for 13x13?

Nick


>
> Erik
>
>
>
> On Wed, Apr 9, 2014 at 7:57 PM, Nick Wedd <nick at maproom.co.uk> wrote:
>> On 09/04/2014 15:39, Christoph Birk wrote:
>>>
>>>
>>> On Apr 9, 2014, at 7:24 AM, "uurtamo ." <uurtamo at gmail.com> wrote:
>>>>
>>>> I'm not sure what you're hoping to measure with that
>>>>
>>>> On Apr 9, 2014 7:21 AM, "Christoph Birk" <birk at obs.carnegiescience.edu>
>>>> wrote:
>>>>
>>>> On Apr 9, 2014, at 1:23 AM, Nick Wedd <nick at maproom.co.uk> wrote:
>>>>>
>>>>> Adding up the results for the last four KGS 13x13 bot tournaments, all
>>>>> played with 7½ komi, I find that Black has won 101, White has won 112.
>>>>
>>>>
>>>>
>>>> How does this statistic look if you only include games _between_ bots
>>>> that have more
>>>> wins than losses?
>>>
>>>
>>> Nick posted the above statistic (B+101, W+112).  I assume he wanted
>>> to support his opinion that 7 is the proper komi for 13x13.
>>
>>
>> No - I wanted to show that we have insufficient evidence to claim that
>> 7.5 is too high.
>>
>>
>>> It was derived from all games in the tournaments.
>>
>>
>> It was derived in all games in 13x13 tournaments since April 2013,
>> when my reports started to include counts of black and white wins,
>> of the form "Black won 28 games and White won 32".
>>
>> If anyone wants to go through the results of more KGS 13x13
>> tournaments, excluding games involving whatever they consider to be
>> "weaker programs", and report on what they find, I will be interested.
>> I suggest they use the links at
>> http://www.weddslist.com/kgs/past/index.html ,
>> and that they start on or after June 2010, when I started to include
>> cross-tables in my reports.
>>
>> Nick
>>
>>
>>
>> I think that games
>>>
>>> between or against weaker  programs should be ignored,
>>> since they are mostly noise.
>>>
>>> Christoph
>>>
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>>>
>>
>>
>> --
>> Nick Wedd
>> nick at maproom.co.uk
>>
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>


-- 
Nick Wedd
nick at maproom.co.uk



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