Hundred and twenty-second KGS Computer Go Tournament

Sunday May 8th, 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 16:00 UTC.

Result table

Place	Name	cross-table	Wins	SOS	SoDOS	Notes
Zen19	abaku	HiraB	Leela	Imrsc	matil
1	Zen19X	X	^W1¹_R ^B1⁶_R ^W1¹⁰_R	^W1³_R ^B1⁷_R ^W1¹¹_R	^B1²_R ^W1⁹_R	^B1⁵_R ^W1⁸_R	^B1⁴_R ^W1¹²_R	12	63	63	Winner
2	abakus	^B0¹_R ^W0⁶_R ^B0¹⁰_R	X	^W1⁴_R ^B1⁹_R ^W0¹²_R	^W1³_R ^B1⁸_R	^W1²_R ^B1⁷_R	^W1⁵_R ^B1¹¹_R	8	75	32
3	HiraBot	^B0³_R ^W0⁷_R ^B0¹¹_R	^B0⁴_R ^W0⁹_R ^B1¹²_R	X	^W1⁵_R ^B1⁶_T	^W1¹_T ^B1¹⁰_R	^W1²_R ^B1⁸_R	7	78	26
4	LeelaBot	^W0²_R ^B0⁹_R	^B0³_R ^W0⁸_R	^B0⁵_R ^W0⁶_T	X	^B1⁴_R ^W1¹¹_R ^B1¹²_R	^W1¹_R ^B1⁷_R ^W1¹⁰_R	6	63	9
5	Imrscl	^W0⁵_R ^B0⁸_R	^B0²_R ^W0⁷_R	^B0¹_T ^W0¹⁰_R	^W0⁴_R ^B0¹¹_R ^W0¹²_R	X	^B1³_R ^W0⁶_R ^B1⁹_R	2	75	2
6	matilda	^W0⁴_R ^B0¹²_R	^B0⁵_R ^W0¹¹_R	^B0²_R ^W0⁸_R	^B0¹_R ^W0⁷_R ^B0¹⁰_R	^W0³_R ^B1⁶_R ^W0⁹_R	X	1	78	2

Place

Name

cross-table

Wins

SOS

SoDOS

Notes

Zen19

abaku

HiraB

Leela

Imrsc

matil

Zen19X

^W1¹_R ^B1⁶_R ^W1¹⁰_R

^W1³_R ^B1⁷_R ^W1¹¹_R

^B1²_R ^W1⁹_R

^B1⁵_R ^W1⁸_R

^B1⁴_R ^W1¹²_R

Winner

abakus

^B0¹_R ^W0⁶_R ^B0¹⁰_R

^W1⁴_R ^B1⁹_R ^W0¹²_R

^W1³_R ^B1⁸_R

^W1²_R ^B1⁷_R

^W1⁵_R ^B1¹¹_R

HiraBot

^B0³_R ^W0⁷_R ^B0¹¹_R

^B0⁴_R ^W0⁹_R ^B1¹²_R

^W1⁵_R ^B1⁶_T

^W1¹_T ^B1¹⁰_R

^W1²_R ^B1⁸_R

LeelaBot

^W0²_R ^B0⁹_R

^B0³_R ^W0⁸_R

^B0⁵_R ^W0⁶_T

^B1⁴_R ^W1¹¹_R ^B1¹²_R

^W1¹_R ^B1⁷_R ^W1¹⁰_R

Imrscl

^W0⁵_R ^B0⁸_R

^B0²_R ^W0⁷_R

^B0¹_T ^W0¹⁰_R

^W0⁴_R ^B0¹¹_R ^W0¹²_R

^B1³_R ^W0⁶_R ^B1⁹_R

matilda

^W0⁴_R ^B0¹²_R

^B0⁵_R ^W0¹¹_R

^B0²_R ^W0⁸_R

^B0¹_R ^W0⁷_R ^B0¹⁰_R

^W0³_R ^B1⁶_R ^W0⁹_R

Black won 19 games and White 17.

Players

Five players registered. To make the numbers even, I included Imrscl, full name Iomrasc�la�, which was acting as a "ghost" to make the numbers even instead of GNU Go. Iomrasc�la� is the work of Urban Hafner (contributor to HouseBot), Igor Polyakov, and Thomas Poinsot.

Results

In round 1, Imrscl repeatedly joined and left its game with HiraBot, but never made a move. It lost on time.

In round 2, Imrscl repeatedly joined and left its game with abakus, until its operator Urban Hafner found he could fix the problem by removing the kgs-chat command. It was then able to play, but lost the game.

In its round 7 game against HiraBot, LeelaBot tried to make an illegal move, which the server rejected, and LeelaBot eventually lost on time. This did not affect the result, it was almost 80 points behind. The illegal move (e14 at move 370) was not a superko or anything subtle, it just tried to play into its opponent's one-point eye.

Annual points

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

Zen	8
Abakus	5
Hiratuka	3
Leela	2
Iomrasc�la�	1

Details of processor numbers, power, etc.

abakus: Abakus, running on an MCTS engine with 8 compute nodes of OCuLUS (www.pc2.de). Each node has: two Intel Xeon E5-2670 (16 cores total), 2.6GHz, 64 GByte main memory, nVIDIA K20 (2.496 core, 5 GByte).
HiraBot: Hiratuka, running on an i7-3770k 4 cores 8 threads + GTX670.
Imrscl: Iomrasc�la�, running on c4.8xlarge AWS EC2 instance (36 cores).
LeelaBot: Leela, running on a Intel Core i7-3770K + AMD Radeon R9 390.
matilda: matilda, running on an Intel i5-3350P with 7 GiB RAM.
Zen19X: Zen, running on a dual 10-core Xeon E5-2687W v3@3.1 GHz/32 GB RAM.