Hundred and sixth KGS Computer Go Tournament

Sunday October 12, 2014

These results also appear on an official KGS page.

Rules

format	Double round robin
board size	9×9
rules	Chinese
komi	7
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
Fuego	AyaMC	HiraB	Orego	Goiss	MCark
1	Fuego9	X	J⁷ ^W0⁸_R ^B1⁹_R ^W0¹³_R ^B1¹⁴_R	^B0¹_R ^W1⁴_R ^B1¹⁰₂ ^W1¹⁵_R	^W1⁵_R ^B1¹¹_R J¹⁶ ^B1¹⁸_R	^W1³_R ^B1¹²_R	^W1²_F ^B1⁶_F ^W1¹⁷_F	14	160½	100	Winner
2	AyaMC	J⁷ ^B1⁸_R ^W0⁹_R ^B1¹³_R ^W0¹⁴_R	X	^W1³_R ^B0⁵_R ^W1¹¹_R J¹⁸	^B1⁴_R ^W1¹²_R ^B1¹⁷_R	^W1²_R ^B1⁶_R ^W1¹⁵_R	^B1¹_T ^W1¹⁰_F ^B1¹⁶_F	14	159	94½
3	HiraBot	^W1¹_R ^B0⁴_R ^W0¹⁰₂ ^B0¹⁵_R	^B0³_R ^W1⁵_R ^B0¹¹_R J¹⁸	X	^W1²_F ^B1⁶_R ^W0¹³_R	^W1⁷_R ^B1⁹_R ^W1¹⁶_R ^B1¹⁷_R	^B1⁸_F ^W1¹²_F ^B1¹⁴_F	11½	161	70
4	Orego12	^B0⁵_R ^W0¹¹_R J¹⁶ ^W0¹⁸_R	^W0⁴_R ^B0¹²_R ^W0¹⁷_R	^B0²_F ^W0⁶_R ^B1¹³_R	X	^B0¹_T ^W1⁸_R ^B1¹⁰_R ^W1¹⁴_R	^B0³_T ^W1⁷_F ^B1⁹_F ^W1¹⁵_F	7½	160½	32½
5	Goissa	^B0³_R ^W0¹²_R	^B0²_R ^W0⁶_R ^B0¹⁵_R	^B0⁷_R ^W0⁹_R ^B0¹⁶_R ^W0¹⁷_R	^W1¹_T ^B0⁸_R ^W0¹⁰_R ^B0¹⁴_R	X	^W1⁴_F ^B1⁵_F ^W1¹¹_F ^B1¹³_F ^W1¹⁸_F	6	151	12½
6	MCark	^B0²_F ^W0⁶_F ^B0¹⁷_F	^W0¹_T ^B0¹⁰_F ^W0¹⁶_F	^W0⁸_F ^B0¹²_F ^W0¹⁴_F	^W1³_T ^B0⁷_F ^W0⁹_F ^B0¹⁵_F	^B0⁴_F ^W0⁵_F ^B0¹¹_F ^W0¹³_F ^B0¹⁸_F	X	1	178½	7½

Place

Name

cross-table

Wins

SOS

SoDOS

Notes

Fuego

AyaMC

HiraB

Orego

Goiss

MCark

Fuego9

J⁷ ^W0⁸_R ^B1⁹_R ^W0¹³_R ^B1¹⁴_R

^B0¹_R ^W1⁴_R ^B1¹⁰₂ ^W1¹⁵_R

^W1⁵_R ^B1¹¹_R J¹⁶ ^B1¹⁸_R

^W1³_R ^B1¹²_R

^W1²_F ^B1⁶_F ^W1¹⁷_F

160½

100

Winner

AyaMC

J⁷ ^B1⁸_R ^W0⁹_R ^B1¹³_R ^W0¹⁴_R

^W1³_R ^B0⁵_R ^W1¹¹_R J¹⁸

^B1⁴_R ^W1¹²_R ^B1¹⁷_R

^W1²_R ^B1⁶_R ^W1¹⁵_R

^B1¹_T ^W1¹⁰_F ^B1¹⁶_F

159

94½

HiraBot

^W1¹_R ^B0⁴_R ^W0¹⁰₂ ^B0¹⁵_R

^B0³_R ^W1⁵_R ^B0¹¹_R J¹⁸

^W1²_F ^B1⁶_R ^W0¹³_R

^W1⁷_R ^B1⁹_R ^W1¹⁶_R ^B1¹⁷_R

^B1⁸_F ^W1¹²_F ^B1¹⁴_F

11½

161

Orego12

^B0⁵_R ^W0¹¹_R J¹⁶ ^W0¹⁸_R

^W0⁴_R ^B0¹²_R ^W0¹⁷_R

^B0²_F ^W0⁶_R ^B1¹³_R

^B0¹_T ^W1⁸_R ^B1¹⁰_R ^W1¹⁴_R

^B0³_T ^W1⁷_F ^B1⁹_F ^W1¹⁵_F

7½

160½

32½

Goissa

^B0³_R ^W0¹²_R

^B0²_R ^W0⁶_R ^B0¹⁵_R

^B0⁷_R ^W0⁹_R ^B0¹⁶_R ^W0¹⁷_R

^W1¹_T ^B0⁸_R ^W0¹⁰_R ^B0¹⁴_R

^W1⁴_F ^B1⁵_F ^W1¹¹_F ^B1¹³_F ^W1¹⁸_F

151

12½

MCark

^B0²_F ^W0⁶_F ^B0¹⁷_F

^W0¹_T ^B0¹⁰_F ^W0¹⁶_F

^W0⁸_F ^B0¹²_F ^W0¹⁴_F

^W1³_T ^B0⁷_F ^W0⁹_F ^B0¹⁵_F

^B0⁴_F ^W0⁵_F ^B0¹¹_F ^W0¹³_F ^B0¹⁸_F

178½

7½

Black won 17 games, White won 17, and there were 3 jigoes.

Players and format

Six players registered. We welcomed a player new to these events, 'Goissa', the creation of Artur Roshchin.

Results

In round 1, Orego12 did not move in its game with Goissa, disconnected, and returned later, in time to play in round 4. Also in round 1, MCark played part of its game against AyaMC, and then disconnected. MCark did not return.


orego12 vs AyaMC
Moves 31-33

In round 5, AyaMC played the sequence shown to the right against Orego12. This is, I believe, the tesuji given in English-language tesuji books with a name like "tickling the ferret's belly". It killed the white group, and AyaMC won the game.


HiraBot vs AyaMC
Moves 33-37

In the final round, if AyaMC had won its game with HiraBot, it would have won the tournament. It played moves 33-37 as shown to the left. 33 and 35 look like a sensible reduction of White's territory. But instead of responding to 36 by connecting 33 and 35 to its live group (which I think leads to a win; but I may well be mistaken), it played 37. 37 is sente, but if White answers by connecting the bamboo join, it makes Black's position in the top left weaker while doing nothing to weaken White. This game ended in jigo, allowing Fuego9 to catch up with AyaMC on wins and win the tournament on the SOS tiebreak.

Annual points

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

Fuego	7
Aya	6
HiraBot	3
Orego	2
Goissa	1

Details of processor numbers, power, etc.

Goissa: Goissa, running 16 threads on 2 x Xeon E5-2420.
MCark: MC_ark, running on a Xeon E5-2687W 3.10GHz 8core HT, using two cpus.
Orego12: Orego,
Fuego9: Fuego running on a 12 core Xeon X5670@2.93GHz.
AyaMC: Aya, MC version, running on one machine: 980X 3.3GHz 6 cores.
HiraBot: HiraBot, running on a i7-3930k@3.2GHz 6 cores, 12 threads.