Hundred and eighth KGS Computer Go Tournament

Sunday December 9th, 2014

These results also appear on an official KGS page.


format18-round Swiss
board size13×13
time9 minutes plus 10/30s


The first round started at 16:00 UTC.

Result table

AyaMC stv HiraB coldm fuego NiceG Orego MCark
W13R B07R W112R B115R W12R B110R W114R B118R B14R W111R B016R B15R W19R B117R B18R W113R W11R W16R 16175152Winner
2stv B03R W17R B012R W015R
B14R W18R B016R W017R B09R W113R B114R B11R W111R W12R B110R B16R B15R W118F 12184101
3HiraBot B02R W010R B014R W018R W04R B08R W116R B117R
W11R B16R W17R B115R B13R W111R W15R B112R W19R B113R 1217688
4coldmilk W04R B011R W116R W19R B013R W014R B01R W06R
W13R B08R B15R W115R B117R B17R W110R B118R B12R W112R 1116071
5fuego13 W05R B09R W017R W01R B011R B07R W015R B03R W18R
W16R B012R W118T B12R W113R B116R W14R B110R W114T 915440
6NiceGo19N W08R B013R B02R W010R W03R B011R W05R B015R W017R B06R W112R B018T
B14R W19 B114R B11R W17R B116F 715524
7Orego12 B01R W06R B05R W012R W07R B010R W018R W02R B013R W016R W04R B09 W014R
B03 W18R B011 W115F B117F 31436
8MCark B06R W05R B018F B09R W013R W02R B012R B04R W010R B014T W01R B07R W016F W13 B08R W111 B015F W017F

Black won 30 games and White won 38. MCark also lost four games by forfeit, after disconnecting from the server.


Shortly before the deadline for entries, when six players had registered, I received an entry from 'stv', so I also included gnugo3pt8 to make the numbers even.

After the deadline, I received an entry from coldmilk. I chose to accept this as it would make the number of genuine players (i.e. not gnugo3pt8) even. Unfortunately, in my hurry to get it registered in time, I used the wrong name, "coldmilk" instead of "ColdmilkS" as specified. Fortunately, its operator also controls the "coldmilk" account on KGS, and was able to use that.

I have decided to shorten the deadline, from 30 minutes to 15. minutes before the start of play, but to enforce it rigorously in future. Fifteen minutes should be enough for me to cancel the tournament, create another one in its place, and re-register all the entrants, if something goes wrong.


In round 1, coldmilk was about 30 seconds late for its game with HiraBot, after its operator had restarted it as explained above. It eventually lost the game.

Also in round 1, Orego12 was black, and played normally. This was the only game in which it played a stone on move 1.

In round 3, Orego12, as black against MCark, passed on move 1. MCark then passed, ending the game and winning by the komi. In every subsequent game in which it was black, Orego12 passed on move 1. Only MCark was smart enough to pass for an immediate sure win. HiraBot, NiceGo19N, and coldmilk all played stones, and eventually won their games.

In round 14, MCark lost on time to fuego13.

In round 15, MCark did not join its game with Orego12, and eventually lost on time. I later found that it was no longer connected to KGS. It also lost all its subsequent games on time. These games are shown as losses on Time in Orego12's game record, but as losses by Forfeit on the KGS web site, e.g. here.

Annual points

Players receive points for the 2014 Annual KGS Bot Championship as follows:


Details of processor numbers, power, etc.

Aya, MC version, running on one machine: 980X 3.3GHz 6 cores.
coldmilk, MC version, running on a 16-core Xeon, 2.9GHz.
Fuego running on a 2 x Intel Xeon X5670 Six-Core 2.93GHz (12 cores total, 24 threads).
HiraBot, running on a i7-3930k@3.2GHz 6 cores, 12 threads.
MC_ark, running on a Xeon E5-2687W 3.10GHz 8core HT, using two cpus.
oakfoam, running on i7-4790K.
Orego, running on one node 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.
Steenvreter, running with 46 threads on an opteron.