Hundred and twenty-seventh KGS Computer Go Tournament

Sunday November 13th, 2016

These results also appear on an official KGS page

Rules

format	12-round Swiss
board size	19×19
rules	Chinese
komi	7½
time	14 minutes plus 10/30s

Times

The first round started at 08:00 UTC.

Results table, Formal division

Place	Name	cross-table	Wins	SOS	SoDOS	Notes
AyaMC	Leela	Cyber	gnugo
1	AyaMC	X	^B1²_R ^W1⁴_R ^B1⁷_R ^W0⁹_R ^B1¹²_R	^B1¹_67½ ^W1⁵_42½ ^B1⁸_89½ ^W1¹¹_36½	^B1³_R ^W1⁶_R ^B1¹⁰_R	11	60	52	Winner
2	LeelaBot	^W0²_R ^B0⁴_R ^W0⁷_R ^B1⁹_R ^W0¹²_R	X	^B1³_89½ ^W1⁶_F ^B1¹⁰_27½	^B1¹_T ^W1⁵_R ^B1⁸_R ^W1¹¹_R	8	70	26
3	CyberGoBot	^W0¹_67½ ^B0⁵_42½ ^W0⁸_89½ ^B0¹¹_36½	^W0³_89½ ^B0⁶_F ^W0¹⁰_27½	X	^W1²_R ^B1⁴_R ^W1⁷_R ^B1⁹_R ^W1¹²_R	5	68	0
4	gnugo3pt8	^W0³_R ^B0⁶_R ^W0¹⁰_R	^W0¹_T ^B0⁵_R ^W0⁸_R ^B0¹¹_R	^B0²_R ^W0⁴_R ^B0⁷_R ^W0⁹_R ^B0¹²_R	X	0	90	0

Place

Name

cross-table

Wins

SOS

SoDOS

Notes

AyaMC

Leela

Cyber

gnugo

AyaMC

^B1²_R ^W1⁴_R ^B1⁷_R ^W0⁹_R ^B1¹²_R

^B1¹_67½ ^W1⁵_42½ ^B1⁸_89½ ^W1¹¹_36½

^B1³_R ^W1⁶_R ^B1¹⁰_R

Winner

LeelaBot

^W0²_R ^B0⁴_R ^W0⁷_R ^B1⁹_R ^W0¹²_R

^B1³_89½ ^W1⁶_F ^B1¹⁰_27½

^B1¹_T ^W1⁵_R ^B1⁸_R ^W1¹¹_R

CyberGoBot

^W0¹_67½ ^B0⁵_42½ ^W0⁸_89½ ^B0¹¹_36½

^W0³_89½ ^B0⁶_F ^W0¹⁰_27½

^W1²_R ^B1⁴_R ^W1⁷_R ^B1⁹_R ^W1¹²_R

gnugo3pt8

^W0³_R ^B0⁶_R ^W0¹⁰_R

^W0¹_T ^B0⁵_R ^W0⁸_R ^B0¹¹_R

^B0²_R ^W0⁴_R ^B0⁷_R ^W0⁹_R ^B0¹²_R

Excluding one forfeited game, Black won 14 games and White won 9 games.

Players

Three players registered for the Formal division and none for the Open division. I used gnugo3pt8 to make an even number and avoid byes.

One of the entrants was a new program to these events: CyberGo, written by Paul Hepperger, of Vienna, Austria.

Results

In round 1, gnugo3pt8 failed to respond to move 73. I closed it down and relaunched it, and it rejoined its game with LeelaBot, but did not make a move. I have never known it to hang like this before. It eventually lost on time.

In round 2, at 0832 UTC, gnugo3pt8 and I were both disconnected from the server. We reconnected easily, and gnugo3pt8 resumed its game with CyberGoBot. The other game was slow to resume, its players had also been disconnected. Some other human users, including AyaBot's creator HYamashita, also reported that they had been disconnected.


CyberGoBot vs LeelaBot
Move 262

In round 3, CyberGoBot tried to fight an unwinnable ko with LeelaBot, as shown to the right, and eventually lost.

In round 10, gnugo3pt8 again hung, against AyaMC. Closing and relaunching it caused it to resume play.

Annual points

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

Aya	8
Leela	5
CyberGo	3
GNU Go	2

Details of processor numbers, power, etc.

AyaMC: Aya, running on one machine, and using Policy network + Value network.
gnugo3pt8: GNU Go, version 3.8, running one thread on one i5-5200 CPU.
LeelaBot: Leela running on an Intel Core i5-6600 + AMD Radeon R9 390.
CyberGoBot: CyberGo running on 1 core 1 thread on Phenom II X4 965 3.4 GHz.