Ninety-fifth KGS Computer Go Tournament

Sunday August 25th, 2013

These results also appear on an official KGS page.

Rules

format24-round Swiss
board size13×13
rulesChinese
komi
time9 minutes plus 10/30s

Times

The first round started at 08:00 UTC.

Result table


PlaceNamecross-tableWinsSOSSoDOSNotes
Zen19 AyaMC pachi coldm Orego gnugo
1Zen19S
X
B11R W17R B111R W114R B118R W122R W12R B15R W110R B115R W119R B123R W13R B18R W113R B116R W120R W16R B19R W117R B124R W14 B11215½ W12162½ 24259259Winner
2AyaMC W01R B07R W011R B014R W018R B022R
X
W03R B112R W113R B116R W020R B14R W05R B110R W117R B123R W124R W12R B18R W121R W16 B19 W11528½ B119 15306123
3pachi B02R W05R B010R W015R B019R W023R B13R W012R B013R W016R B120R
X
W16R B09R W121R B14R W17R B111R W118R B122R B11 W18 B114 W11718½ B124 1429292
4coldmilk B03R W08R B013R W016R B020R W04R B15R W010R B017R W023R B024R B06R W19R B021R
X
W11R B112R W114R B115R W119R W12½ B17 W111½ B018R W122½ 1129267
5Orego12 B06R W09R B017R W024R B02R W08R B021R W04R B07R W011R B018R W022R B01R W012R B014R W015R B019R
X
B13 W15½ B110 W113½ B116 W020R B123 628012
6gnugo3pt8 B04 W01215½ B02162½ B06 W09 B01528½ W019 W01 B08 W014 B01718½ W024 B02½ W07 B011½ W118R B022½ W03 B05½ W010 B013½ W016 B120R W023
X
229917

Black won 36 games and White won 36 games.

In the table above,
   0 is a loss
   1 is a win
   J is jigo
   left superscript is the player's colour
   right superscript is the round in which the game was played
   a subscript shows how the result was determined:
      R for resignation
      T for time
      F for forfeit
      a number for the points difference after counting.
All the 0s, 1s and Js are links to the game record.

Five players registered for the tournament. I therefore added GNU Go, running on a single processor of my own desktop PC. I believe that having it play is better than having byes: GNU Go is so weak that it is unlikely to affect the result, but strong enough that it can win the occasional game.

Results

I have nothing to say about the actual play, as most of the players are stronger than me.

Zen19S won all 24 of its games. This is a most impressive achievement. Over this many games, we would expect at least a few upsets (as the results of gnugo3pt8 show); but Zen19S won all 24 of its games.


Annual points

Players receive points for the 2013 Annual KGS Bot Championship as follows:

Zen8
Aya5
pachi3
Coldmilk2
Orego1


Details of processor numbers, power, etc.

AyaMC
Aya, MC version, running on 980X 3.3GHz 6 cores
coldmilk
coldmilk, running on a 16-core Xeon, 2.9GHz
gnugo3pt8
GNU Go version 3.8, running at its "level 17" on a single 3.3GHz Intel i5-2500 CPU. For rounds 1 to 3 it was accidentally configured to a lower level, so that it played too fast.
Orego12
Orego, running one of the five nodes of a custom Linux cluster. The node has two AMD Six Core Dual Opteron 2427 2.2 GHz processors (12 cores total), 8 GB RAM, Centos Linux.
pachi
pachi, running on an AMD FX-8350 8 threads 16GiB RAM.
Zen19S
Zen, running on a mini cluster of a dual 6-core Xeon X5680@4 GHz 24 GB RAM, a 6-core i7 3930K@4 GHz 16 GB RAM, a 6-core Xeon W3680@4 GHz 12 GB RAM, and a 6-core i7 980X@4 GHz 6 GB RAM computers connected via aGbE LAN. 30 cores total.