Hundred and nineteenth KGS Computer Go Tournament

Sunday January 10th, 2016

These results also appear on an official KGS page.

Rules

format	18-round Swiss
board size	19×19
rules	Chinese
komi	7½
time	29 minutes plus 10/30s

Times

The first round started at 08:00 UTC.

Result table

Place	Name	cross-table	Wins	SOS	SoDOS	Notes
Zen19	DolBa	darkf	abaku	AyaMC	WeakB	gnugo	YKDbo
1	Zen19S	X	^W1¹_58½	^W1⁵_T	^W0²_R ^B1⁷_R	^B1³_R	^W1⁶_R	^B1⁴_R		6	26	22	Winner
2	DolBaram	^B0¹_58½	X	^B1⁴_T	^W1⁶_2½	^W1⁷_R	^W1³_R	^W1²_R	^B1⁵_R	6	22	16
3	darkfmcts3	^B0⁵_T	^W0⁴_T	X	^B1³_R	^W1²_R	^W1⁷_R	^W1¹_R	^W1⁶_R	5	23	11
4	abakus	^B1²_R ^W0⁷_R	^B0⁶_2½	^W0³_R	X	^B1⁵_R	^B1⁴_R		^B1¹_R	4	28	11
5	AyaMC	^W0³_R	^B0⁷_R	^B0²_R	^W0⁵_R	X	^B1¹_R	^W1⁶_R	^W1⁴_R	3	25	4
6	WeakBot	^B0⁶_R	^B0³_R	^B0⁷_R	^W0⁴_R	^W0¹_R	X	^B1⁵_R	^W1²_R	2	26	2
7	gnugo3pt8	^W0⁴_R	^B0²_R	^B0¹_R		^B0⁶_R	^W0⁵_R	X	^B1³_R ^W1⁷_R	2	22	0
9	YKDbot		^W0⁵_R	^B0⁶_R	^W0¹_R	^B0⁴_R	^B0²_R	^W0³_R ^B0⁷_R	X	0	24	0

Place

Name

cross-table

Wins

SOS

SoDOS

Notes

Zen19

DolBa

darkf

abaku

AyaMC

WeakB

gnugo

YKDbo

Zen19S

^W1¹_58½

^W1⁵_T

^W0²_R ^B1⁷_R

^B1³_R

^W1⁶_R

^B1⁴_R

Winner

DolBaram

^B0¹_58½

^B1⁴_T

^W1⁶_2½

^W1⁷_R

^W1³_R

^W1²_R

^B1⁵_R

darkfmcts3

^B0⁵_T

^W0⁴_T

^B1³_R

^W1²_R

^W1⁷_R

^W1¹_R

^W1⁶_R

abakus

^B1²_R ^W0⁷_R

^B0⁶_2½

^W0³_R

^B1⁵_R

^B1⁴_R

^B1¹_R

AyaMC

^W0³_R

^B0⁷_R

^B0²_R

^W0⁵_R

^B1¹_R

^W1⁶_R

^W1⁴_R

WeakBot

^B0⁶_R

^B0³_R

^B0⁷_R

^W0⁴_R

^W0¹_R

^B1⁵_R

^W1²_R

gnugo3pt8

^W0⁴_R

^B0²_R

^B0¹_R

^B0⁶_R

^W0⁵_R

^B1³_R ^W1⁷_R

YKDbot

^W0⁵_R

^B0⁶_R

^W0¹_R

^B0⁴_R

^B0²_R

^W0³_R ^B0⁷_R

Black won 13 games and White won 15.

Players

Eight players registered. These included darkfmcts3, a build of "Darkforest", entered by Yuandong Tian of the Facebook AI Research team; and YKDBot, a build of "GREAT", by Takeshiro Yoshikawa.

Five minutes before play was due to start, six of the eight registered players were connected to the server, along with gnugo3pt8, which I had entered in case it was needed to make the numbers even. Manyfaces1 and YKDBot were missing. So I left gnugo3pt8 in, not knowing whether it would be needed. In fact YKDbot arrived just before play started. Luckily the bye was assigned to ManyFaces1. When ManyFaces1 had still not appeared three minutes before the start of round 2, I removed it, leaving eight players.

Results

In round 2, the kibitzers were unable to understand the complicated game between Zen19S and abakus. Abakus won.

In round 4, darkfmcts3 lost on time, in what I think was a lost position, to DolBaram.

In round 5, darkfmcts3 lost on time, in a won position, to Zen19S.

In its round 7 game with Zen19S, abakus tried to fight a double ko from the losing end. It lost the game.

Annual points

Players receive points for the 2016 Annual KGS Bot Championship as follows:

Zen	7
DolBaram	6
Darkforest	3
abakus	2
Aya	1

Details of processor numbers, power, etc.

abakus: abakus, running on 8 nodes each with two Intel Xeon E5-2670, 2.6GHz and 64 GByte main memory (128 cores total) and each with a Tesla K20 (8 GPUs total).
AyaMC: Aya, using GPU for 12-layer DCNN, running on Xeon W3680 3.3GHz 6 cores + GTX 980, 6 threads.
darkfmcts3: Darkforest running on "10 gpu machines" – further information will appear here when more is known
DolBaram: DolBaram, running on Amazon EC2 C4.8xLarge (2.9GHz * 18core)
gnugo3pt8: GNU Go, version 3.8, running one thread on one i5-5200 CPU.
WeakBot: HiraBot running on an i7-4790k 4 cores 8 threads. HiraBot use neural network data.
YKDbot: GREAT, running on an Intel i7-3930K 3.20GHz
Zen19S: Zen, running on a mini cluster of a dual 12-core Xeon E5-2690 v3@2.6 GHz 32 GB RAM, a dual 10-core Xeon E5-2690 v2@3 GHz 32 GB RAM, a dual 6-core Xeon X5680@3.5 GHz 12 GB RAM and an 8-core Core i7 5690X@2.8 GHz 16 GB RAM computers. Connected via a GbE LAN. 64 cores total.