@jlt: Sure. But you're preventing White from getting... 5 points? If you manage to get those yourself, it's a 10 point difference, locally, in exchange for a center facing wall, pretty low (with holes, granted), and a pretty nice space between the 12th and 16th lines.

@Uberdude: c10 jump... do you mean c12?

As I see it, W54@D9 gets it the SW corner, a connection with the Northern wall, and center influence. Black can pick some details (reduce towards North or South? defects on the wall?), but that much's a given.

Take care.

_________________
一碁一会

As Uberdude said, at C11 is almost equally good, for us amateurs it doesn't make a difference.

In the variation showed by Yeonwoo, Black takes a few points from White, and White gets a wall facing the center.

If at C11, then White keeps a larger corner and
* either Black takes a few points from White around B12 and White gets a wall facing the center
* or Black gets a weak group that White can attack for profit.

Difficult for us to judge which alternative is best.

The quarterfinal is happening today:

Ke Jie vs. Weon Seongjin
Park Junghwan vs. Yang Dingxin
Shin Minjun vs. Lee Taehyun
Byun Sangil vs.Kang Dongyun

Results:

Ke Jie vs. Weon Seongjin
Park Junghwan vs. Yang Dingxin
Shin Minjun vs. Lee Taehyun
Byun Sangil vs.Kang Dongyun

Semifinal (11/11):
Shin Minjun vs. Park Junghwan
Ke Jie vs. Byun Sangil

Semifinal results:

Ke Jie beat Byun Sangil
Shin Minjun beat Park Junghwan

Final (best of 3):

Ke Jie vs. Shin Minjun

The final will be in Feb.

The final will start on 02/01.

That's February 1st?

_________________
A good system naturally covers all corner cases without further effort.

Final 1st game;
Ke Jie defeated Shin MinJoon.

2nd game:2/3

Final 2nd game;
Shin MinJoon defeated Ke Jie.

3rd game:2/4

Final 3rd game;
Shin MinJoon defeated Ke Jie.

Shin MinJoon is 25th LG cup Champion.

Where can I find the 3rd game ?

Here is a commentary: https://www.youtube.com/watch?v=TgvoK2bYmQo

That was a great game by Shin. It seems the only real mistake Ke made was on the upper left where he didn't choose to go for a ko, but Shin capitalized and maintained the lead all the way to the end.

Commentary in English. I assume Redmond 9p will also do one, soon.

Take care

_________________
一碁一会

Michael Redmond's commentary of the third game: https://youtu.be/d-gdgOdOxUU