It is currently Sat Mar 23, 2019 12:11 am

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 10 posts ] 
Author Message
Offline
 Post subject: Mi Yuting wins Mingren, goratings#1
Post #1 Posted: Fri Oct 19, 2018 5:58 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
Mi Yuting is doing very well recently, is current goratings #1 (with Shin Jinseo overtaking Park Junghwan) and just beat Lian Xiao 2-1 to take the Mingren title. He'll be playing Tuo Jiaxi in the final of the Changqi cup soon too. For the last 6 months he has 33 wins, 6 losses (85%). Many of his games feature uncompromising fighting where he teeters on a knife edge but ends up prevailing. It's easy to see the influence of AI in pro's openings as spot the 3-3 invasion, 3-4 knight response, or 4-4 approach and attach hane is an easy game, but this middlegame from the Mingren final also reminded me of AlphaGo Zero self-play with the complex contact fighting in the centre and willingness to let groups get weak and trust you can extricate them later because killing is really hard with aji around. Nice flexibility on display with the left side starting out as as huge white moyo, then became fairly large territory, and by then end a big black territory and 3 white groups which scrapped out 2 eyes whilst Mi made a big right side in exchange. Was Lian Xiao's 171 a fatal timesuji mistake though?



This post by Uberdude was liked by 3 people: Bill Spight, silviu22, tim
Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #2 Posted: Fri Oct 19, 2018 7:07 am 
Lives in gote

Posts: 355
Liked others: 0
Was liked: 84
Rank: KGS 2k
GD Posts: 100
KGS: Tryss
Quote:
Was Lian Xiao's 171 a fatal timesuji mistake though?

Yeah, probably related to time pressure.

LZ (#181) think Mi Yutin never falled behind, even if Lian managed to get the game close several times. Before this move, White winrate oscillate between 50% and 75%. A couple moves after that, it's in the "under 10% resign!" area.

But the middle game fights seems very complex in this game

Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #3 Posted: Mon Oct 22, 2018 10:23 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
Mi Yuting won the first game of the Changqi cup final against Tuo Jiaxi. I thought he was doing badly after his miserable life on the left side, and Elf agreed, but he won in the end. Counting it myself, and Elf too, think white won so I suppose with the Ing rules Tuo had more time penalties.

http://www.go4go.net/go/games/sgfview/78154

Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #4 Posted: Mon Oct 22, 2018 10:35 am 
Lives in sente

Posts: 880
Location: UK
Liked others: 67
Was liked: 458
Rank: 5 dan
KGS: macelee
In Changqi Cup, time is money (points). Tuo Jiaxi took a 2-point penalty. Mi Yuting is a fast player. When Tuo's time ran out, Mi still had more than 1 hour remaining.

Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #5 Posted: Wed Oct 24, 2018 1:56 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
2nd game Tuo won, just 2 3-3 invasions josekis on one half of the board, a brutal fight on the other ending in Mi's death.

Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #6 Posted: Wed Oct 24, 2018 8:01 am 
Lives with ko

Posts: 266
Liked others: 17
Was liked: 54
Rank: KGS 2d
Mi’s 84 was the killer mistake. Somehow he missed b87 and allowed Tuo to capture the 3 key stones in sente.

Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #7 Posted: Wed Oct 24, 2018 8:36 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
87 was a cute atekomi indeed! But it didn't necessarily capture the 3 stones in sente did it? Couldn't white have played the rather counter-intuitive suicidal move at c9 in reply, black extends, white then plays b7 and captures the side stones as before but by turning 3 stones getting captured into 4 white ends in sente. Losing an extra stones means the 4 stones are off the board, so no d12 atari (so white b12 stones are weaker, as is wall at top left), but getting sente to patch up in the centre at L7 is super valuable. Is it just too miserable losing the extra stone: black is more alive, in the game 3 stones captured isn't yet alive so some future attack potential if white takes the eyespace around h3 in the process of trying to settle that group (as happened in the game), whereas with 4 stones off the board white needs to spend a gote move to hit the vital point so with weakness of surrounding stones that's Tygem-ludicrous.

Edit: but if white's going for sente to patch up in the middle, it would presumably have been better to do so earlier instead of the double-hane.


Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #8 Posted: Thu Oct 25, 2018 9:56 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
And Mi won the decider to win the Changqi Cup. According to Elf it went from even to 90% for Mi from move 25 to 50 and despite some controlled fighting nothing much changed after that. I wonder if Mi thought he was safely ahead from this point onwards. Elf's ability to identify what ends up as about a 4 point win at move 250 way back at move 50 is pretty amazing (also possible Mi was more than 4 points ahead at move 50 and eroded some of the point margin for safety).

Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #9 Posted: Mon Oct 29, 2018 10:44 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
Mi lost to Yang Dingxin in round 20 of the Chinese league, but displayed balls of steel in this round 21 game: how to live with your one eyed group that invaded opp's moyo? Kill his big chunky 4-4 shimari corner you surrounded in the process in a long ko!


Top
 Profile  
 
Offline
 Post subject: Re: Mi Yuting wins Mingren, goratings#1
Post #10 Posted: Wed Jan 09, 2019 2:03 am 
Judan

Posts: 5632
Location: Cambridge, UK
Liked others: 315
Was liked: 2983
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
Mi Yuting messed up in the endgame vs Fan Yunruo so won't get to be in final for Tianyuan challenger, move 184 block at p13 keeps the lead. Got a comment from Luo Xihe 9p who was watching:
Quote:
steadfast [9D]: 这一路一大就给莫儿了



Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group