I agree that 7.0 would be a better komi for the computer Olympiad, but it
should be decided soon, since the komi affects the opening book, and an
integer komi requires some changes in the playout algorithm to properly
account for draws.

 

David

 

From: [email protected]
[mailto:[email protected]] On Behalf Of Jean-loup Gailly
Sent: Monday, August 01, 2011 7:08 AM
To: [email protected]
Subject: Re: [Computer-go] EGC computer-go tournament 9x9

 

> At the end Zen was a convincing winner, with 9 wins out of ten games.
> Pachi on rank 2 with 5 points,

 

The actual result is Zen 8 wins (won all its games, didn't play in two games
because

of parity), and Pachi still rank 2 but with 4 points only. In the last game
against Pachi,

Zen did not implement the KGS cleanup phase correctly, it passed while
leaving

dead stones on the board. So KGS indicates that Pachi has won. However the
tournement

rules
http://www.egc2011.eu/index.php/en/computer-go/75-computer-go-reglement

indicate "In case of trouble in the KGS counting of the score, the human
referee

is allowed to change the result - the situation on the board as the
priority".

So it is fair to say that Zen has won the game.

 

ManyFaces also failed to implement the cleanup phase correctly in another
game,

but this did not affect the result.

 

Jean-loup

2011/8/1 "Ingo Althöfer" <[email protected]>

Today a 9x9 computer-go tournament was played within
the European Go Congress:
5 bots participating, for each pairing two rounds (with different colours).

At the end Zen was a convincing winner, with 9 wins out of ten games.
Pachi on rank 2 with 5 points, ahead of ManyFaces, MyGoFriend, and
MoGo.
http://www.gokgs.com/tournEntrants.jsp?sort=s
<http://www.gokgs.com/tournEntrants.jsp?sort=s&id=608> &id=608

Komi was 7.5. 16 out of the 20 games ended with wins for White.
>From the four wins with Black three were achieved by Zen, the other
one by Pachi.

I think it is really necessary to play in the Tilburg Olympiad with
a smaller komi value. Probably 7.0 would be a fair choice.

Ingo.

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