Hundred and eighteenth KGS Computer Go Tournament

Sunday December 6th, 2015

These results also appear on an official KGS page.

Rules

format	18-round Swiss
board size	13×13
rules	Chinese
komi	7½
time	9 minutes plus 10/30s

Times

The first round started at 16:00 UTC.

Result table

Place	Name	cross-table	Wins	SOS	SoDOS	Notes
abaku	AyaMC	WeakB	ManyF	Raybo	MCark	NiceG	matil
1	abakus	X	^B1³_R ^W0¹⁰_R ^B1¹²_R ^W1¹⁷_R	^W1⁴_R ^B1⁹_R ^W1¹¹_R	^B1⁵_R ^W1¹³_R ^B1¹⁶_7½	^B0²_R ^W1⁷_R ^B1¹⁸_R	^B1⁸_R ^W1¹⁵_R	^B1¹_T ^W1¹⁴_R	^W1⁶_F	16	170	148	Winner
2	AyaMC	^W0³_R ^B1¹⁰_R ^W0¹²_R ^B0¹⁷_R	X	^W0²_R ^B0⁸_R ^W1¹⁴_R ^B1¹⁸_R	^W1⁶_16½ ^B1⁷_3½	^B1⁹_R ^W1¹⁵_R	^B1¹_R ^W1¹¹_R	^B1⁴_T ^W1¹⁶_R	^W1⁵_T	13	174	102
3	WeakBot	^B0⁴_R ^W0⁹_R ^B0¹¹_R	^B1²_R ^W1⁸_R ^B0¹⁴_R ^W0¹⁸_R	X	^B1¹_T ^W1¹⁰_R ^B0¹⁷_R	^B1³_R ^W1¹²_19½	^B1⁵_R ^W1¹⁶_R	^W1⁶_R ^B1¹³_R	^B1⁷_F	12	173	88
4	ManyFaces1	^W0⁵_R ^B0¹³_R ^W0¹⁶_7½	^B0⁶_16½ ^W0⁷_3½	^W0¹_T ^B0¹⁰_R ^W1¹⁷_R	X	^B1⁴_R ^W1⁸_R ^B1¹⁴_R	^W1³_R ^B1¹²_R	^B1⁹_R ^W1¹⁵_R ^B1¹⁸_R	^W1²_T	11	164	66
5	Raybot	^W1²_R ^B0⁷_R ^W0¹⁸_R	^W0⁹_R ^B0¹⁵_R	^W0³_R ^B0¹²_19½	^W0⁴_R ^B0⁸_R ^W0¹⁴_R	X	^W1⁶_R ^B1¹³_R ^W1¹⁷_R	^B1⁵_R ^W1¹¹_R	^W1¹_37½	9	159	44
6	MCark	^W0⁸_R ^B0¹⁵_R	^W0¹_R ^B0¹¹_R	^W0⁵_R ^B0¹⁶_R	^B0³_R ^W0¹²_R	^B0⁶_R ^W0¹³_R ^B0¹⁷_R	X	^W1²_T ^B0⁷_R ^W1¹⁰_R	^W1⁴_F	6	146	10
7	NiceGo19N	^W0¹_T ^B0¹⁴_R	^W0⁴_T ^B0¹⁶_R	^B0⁶_R ^W0¹³_R	^W0⁹_R ^B0¹⁵_R ^W0¹⁸_R	^W0⁵_R ^B0¹¹_R	^B0²_T ^W1⁷_R ^B0¹⁰_R	X	^W1³_F	5	151	6
8	matilda	^B0⁶_F	^B0⁵_T	^W0⁷_F	^B0²_T	^B0¹_37½	^B0⁴_F	^B0³_F	X	0	72	0	Quit before round 8

Place

Name

cross-table

Wins

SOS

SoDOS

Notes

abaku

AyaMC

WeakB

ManyF

Raybo

MCark

NiceG

matil

abakus

^B1³_R ^W0¹⁰_R ^B1¹²_R ^W1¹⁷_R

^W1⁴_R ^B1⁹_R ^W1¹¹_R

^B1⁵_R ^W1¹³_R ^B1¹⁶_7½

^B0²_R ^W1⁷_R ^B1¹⁸_R

^B1⁸_R ^W1¹⁵_R

^B1¹_T ^W1¹⁴_R

^W1⁶_F

170

148

Winner

AyaMC

^W0³_R ^B1¹⁰_R ^W0¹²_R ^B0¹⁷_R

^W0²_R ^B0⁸_R ^W1¹⁴_R ^B1¹⁸_R

^W1⁶_16½ ^B1⁷_3½

^B1⁹_R ^W1¹⁵_R

^B1¹_R ^W1¹¹_R

^B1⁴_T ^W1¹⁶_R

^W1⁵_T

174

102

WeakBot

^B0⁴_R ^W0⁹_R ^B0¹¹_R

^B1²_R ^W1⁸_R ^B0¹⁴_R ^W0¹⁸_R

^B1¹_T ^W1¹⁰_R ^B0¹⁷_R

^B1³_R ^W1¹²_19½

^B1⁵_R ^W1¹⁶_R

^W1⁶_R ^B1¹³_R

^B1⁷_F

173

ManyFaces1

^W0⁵_R ^B0¹³_R ^W0¹⁶_7½

^B0⁶_16½ ^W0⁷_3½

^W0¹_T ^B0¹⁰_R ^W1¹⁷_R

^B1⁴_R ^W1⁸_R ^B1¹⁴_R

^W1³_R ^B1¹²_R

^B1⁹_R ^W1¹⁵_R ^B1¹⁸_R

^W1²_T

164

Raybot

^W1²_R ^B0⁷_R ^W0¹⁸_R

^W0⁹_R ^B0¹⁵_R

^W0³_R ^B0¹²_19½

^W0⁴_R ^B0⁸_R ^W0¹⁴_R

^W1⁶_R ^B1¹³_R ^W1¹⁷_R

^B1⁵_R ^W1¹¹_R

^W1¹_37½

159

MCark

^W0⁸_R ^B0¹⁵_R

^W0¹_R ^B0¹¹_R

^W0⁵_R ^B0¹⁶_R

^B0³_R ^W0¹²_R

^B0⁶_R ^W0¹³_R ^B0¹⁷_R

^W1²_T ^B0⁷_R ^W1¹⁰_R

^W1⁴_F

146

NiceGo19N

^W0¹_T ^B0¹⁴_R

^W0⁴_T ^B0¹⁶_R

^B0⁶_R ^W0¹³_R

^W0⁹_R ^B0¹⁵_R ^W0¹⁸_R

^W0⁵_R ^B0¹¹_R

^B0²_T ^W1⁷_R ^B0¹⁰_R

^W1³_F

151

matilda

^B0⁶_F

^B0⁵_T

^W0⁷_F

^B0²_T

^B0¹_37½

^B0⁴_F

^B0³_F

Quit before round 8

Excluding forfeited games, Black won 26 games and White won 31.

Players

Eight players registered. These included matilda, by Gon�alo Mendes Ferreira, a newcomer to these events (it had hoped to play in the November tournament, but had to withdraw).

Results

In round 1, ManyFaces1 had trouble connecting. It had not played on KGS since July, and since then there had been new releases of both kgsGtp and Java. It lost its game, on time, to WeakNot, without being able to make any move.

Also in round 1, NiceGo19N and abakus failed to agree on the status of some stones after both players had passed. The game entered the clean-up phase, and NiceGo19N failed to make a move, and so lost on time. In fact it was a won position for abakus.

In round 2, ManyFaces1 connected successfully for its game with matilda. But after making six moves matilda vanished, and lost on time.

Also in round 2, raybot beat abakus.

Before round 4, matilda reconnected, and started to play AyaMC. But it disconnected again, and lost on time.

In round 7, matilda withdrew from the rest of the tournament.


WeakBot vs Raybot
At the game end

In round 12, Raybot appeared to understand that "bent four in the corner" is dead, and when it and its opponent WeakBot passed, in the position shown to the right, Raybot claimed that WeakBot's dead corner was indeed dead. WeakBot disputed this, and the game went into the clean-up phase. Raybot did not try to capture the bent-four group, nor the single dead white stone, but passed; so WeakBot was credited with the win. I hope that Raybot will implement the clean-up phase sometime.

Annual points

Players receive points for the 2015 Annual KGS Bot Championship as follows:

abakus	8
AyaMC	5
HiraBot	3
Many Faces of Go	2
Ray	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, MC version, running on i7 980X 3.3GHz 6 cores.
ManyFaces1: Many Faces of Go, running in the Amazon cloud, on an 18-core Intel E5-2666 v3.
matilda: matilda running on 6 core i7 @ 3.2 GHz and 32 GiB RAM
MCark: MC_ark, running on a Xeon E5-2450 2.10GHz 8-core HT on*2cpu + GPU(G200eR2).
NiceGo19N: oakfoam, running on an i7-4790K / GTX-970.
Raybot: Ray running on a dual Xeon E5-2687W v2 (total 16 cores) with 64GB memory.
WeakBot: HiraBot running on an i7-4790k 4 cores 8 threads. HiraBot use neural network data. 18 core Intel E5-2666 v3.