Search found 389 matches

by sorin
Tue Mar 25, 2025 7:49 pm
Forum: Professionals
Topic: Japanese pro earnings 2024
Replies: 6
Views: 31316

Re: Japanese pro earnings 2024

jts wrote:Surprised Yamashita is doing better than Shibano. No one is surprised that Ichiriki and Iyama are #1 and #2, but I would have guessed those two play Shibano more often than anyone else besides each other.
My guess is that Shibano was 3rd in the overall ranking.
by sorin
Fri Feb 23, 2024 9:13 am
Forum: Professionals
Topic: Early-early 3-3
Replies: 13
Views: 17483

Re: Early-early 3-3


Yes, an early-early 3-3. Take that, AlphaGo, which takes the credit for innovation just like Doetsu (probably) overshadowing Yusen. Remarkably, katago seems to say this is the best move. More remarkably, when the AlphaGo 3-3 hit the headlines, one conclusion drawn was that pros had assumed ...
by sorin
Sun Nov 19, 2023 11:56 pm
Forum: Amateurs
Topic: A special (new?) strategy in AGA field?
Replies: 22
Views: 81914

Re: A special (new?) strategy in AGA field?

Gérard TAILLE wrote: Black to play and win
I must be missing something, what is the number of prisoners on each side?
At first sight, assumming no prisoners, black has 22 points, white has 14, so with komi 6.5 black won already.
by sorin
Tue Jul 04, 2023 10:45 am
Forum: Go Books
Topic: New doorstep
Replies: 3
Views: 12258

Re: New doorstep

Thank you for all the wonderful books! This one I even managed to find online and order a couple of days ago, before your announcement here :-)

Any plans to republish older books? I realize I don't have "The Insha Game: Honinbo Shusai versus Karigane Junichi" and a few others which Slate & Shell ...
by sorin
Sat Feb 18, 2023 3:50 pm
Forum: General Go Chat
Topic: Ars Technica article about go
Replies: 20
Views: 19291

Re: Ars Technica article about go

The update is that they found a way to beat KataGo after giving it 9 stones handicap.

Article: https://goattack.far.ai/pdfs/go_attack_paper.pdf
KGS games: https://gokgs.com/gameArchives.jsp?user=corners&year=2023&month=1

Example game:
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]HA[9 ...
by sorin
Sat Apr 23, 2022 3:24 pm
Forum: Announcements
Topic: New book - Ogawa Doteki, Go Prodigy
Replies: 19
Views: 18400

Re: New book - Ogawa Doteki, Go Prodigy

Both "Games of Shuei" and the similarly large "Genjo - Chitoku" books arrived in perfect condition for me, you must have had bad luck... I would just return it and reorder, to get one without defects.

Seems like Amazon's printing service doesn't like them either. I finally decided to spend $80 for ...
by sorin
Thu Nov 19, 2020 11:28 am
Forum: Professionals
Topic: Kim Myeongwan vs. Choi Jeong
Replies: 3
Views: 3945

Re: Kim Myeongwan vs. Choi Jeong

I'm not a big watcher of pro games, but at least to me, Myeongwan stuck out to me as an "old-fashioned" player from the start, even from his third move:

$$Bc ...
by sorin
Sat Oct 31, 2020 7:51 pm
Forum: Amateurs
Topic: 7x7 best play
Replies: 10
Views: 10742

Re: 7x7 best play

Maybe there is a better way for black to play in the beginning, if the komi is 9.
by sorin
Mon Oct 19, 2020 12:47 pm
Forum: Computer Go
Topic: interview with KataGo author David Wu
Replies: 5
Views: 6666

Re: interview with KataGo author David Wu

I also liked the interview!
In particular, I found the quote below very interesting, namely that a small rule change such as "group tax" would make KataGo play more like Takemiya :-)
As an amateur, this means one has even more reason to play their own Go style, instead of trying to mimic AI, since ...
by sorin
Sun Jul 12, 2020 3:03 pm
Forum: Study Group
Topic: Opening problems for AI: Problem 27
Replies: 8
Views: 11282

Re: Opening problems for AI: Problem 27

KataGo with komi set to zero has some unexpected suggestion.

The favorite is black "a" in the lower-left, which seems unusual by human standards. In fact I don't remember ever seeing this move in human pro play!
This way black is winning by 93.5%, 9 points ahead.
KataGo's 2nd choice is black "b ...
by sorin
Fri Jun 26, 2020 1:41 pm
Forum: Study Group
Topic: Leela Zero Opening Gospel: expanded and illustrated
Replies: 20
Views: 22377

Re: Leela Zero Opening Gospel: expanded and illustrated

"My gospel is holier than your gospel", said BlackHole to KataGo: http://www.yss-aya.com/cgos/viewer.cgi?19x19/SGF/2020/06/25/702940.sgf

Interestingly, the several KataGo versions on CGOS all have very negative scores against the BlackHole bot: http://www.yss-aya.com/cgos/19x19/cross ...
by sorin
Wed Jun 24, 2020 6:30 pm
Forum: Study Group
Topic: More Shibano AI magic
Replies: 28
Views: 18406

Re: More Shibano AI magic


The commonality I see between the 3-4 based shimari and the 4-4 based one is that they both prevent the opponent from playing a very desirable move (a keima approach).

That has a circular scent. Isn't the keima approach is a desirable move because it prevents the owner of the corner stone to ...
by sorin
Mon Jun 22, 2020 9:02 pm
Forum: Study Group
Topic: More Shibano AI magic
Replies: 28
Views: 18406

Re: More Shibano AI magic

Personally, I don't like to think in too many categories (such as shimari 1, shimari 2, etc..).

The commonality I see between the 3-4 based shimari and the 4-4 based one is that they both prevent the opponent from playing a very desirable move (a keima approach).

In that sense, the 4-4 based ...
by sorin
Sun Jun 14, 2020 2:52 pm
Forum: Study Group
Topic: Opening problems for AI: Problem 3
Replies: 17
Views: 15025

Re: Opening problems for AI: Problem 3

I suppose in the examples Elf agrees the side extension limits a moyo that needs limiting because it is thick and big, whereas in the first position Black's top side is nothing to be scared of so you shouldn't play locally bad move for non applicable global reasons.

Most players would, I think ...
by sorin
Sun Jun 14, 2020 11:13 am
Forum: Study Group
Topic: Opening problems for AI: Problem 1
Replies: 13
Views: 14511

Re: Opening problems for AI: Problem 1

I was thinking yesterday, while reading Bill's new series of threads, that the message I think AI is telling us is: "you can play anything you want, LITERALLY, in the beginning of the game, as long as you follow it up reasonably afterwards, and you don't make any bad mistakes". I know it is not ...