nongshim cup choi chulhan vs louiyang

Magicwand · Post by **Magicwand** » Tue Jan 18, 2011 6:08 am

i watched whole game and learned something very important from comments by lee sehdol.

as expected choi chulhan played aggresively and his opponent louiyang had to play an unorthadox shape.
many times lee sehdol commented about his shape being ugly and later that haunted him forcing him to overplay.
from this game i have learned the importance of good shape.
although it wasnt clear in the beginning apparently it bothered the eye of the strongest player in the world.
it was very exciting game and i think is very good studying materials for many members in the forum.

someone please post sgf so i can post the comment made by lee sehdol.

Kirby · Post by **Kirby** » Tue Jan 18, 2011 7:42 am

This game?

Magicwand · Post by **Magicwand** » Tue Jan 18, 2011 8:32 am

this semi pincer is very popular opening lately.
:b2:

also very popular
:w3:

can be played but as you can see white has toomany weak points so not prefered.

Click Here To Show Diagram Code: [go]$$W $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 1 , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X 3 . . . . . . . . . . . . . . . | $$ | . . 6 4 5 . 2 . . , . . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

seems only move played by all professionals.
normal variation for below shape as below.

Click Here To Show Diagram Code: [go]$$W $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 2 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X 4 5 . . . . . . . . . . . . . . | $$ | . . 3 , 1 . X . . , . . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

shows the fighting style of choi chulhan. lee sahdol said it is first time for him to see that move.
if black plays :b4:

then

will be ideal cut so black tries something else.

Click Here To Show Diagram Code: [go]$$W $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . 4 . . . . . . . . . . . . . . | $$ | . . . . . 5 . . . . . . . . . . . . . | $$ | . . . . 3 . 2 . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . , O . X . 1 , . . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

according to lee sehdol :b3:

is a mistake that didnt expect :w4:

seems too good for black and didnt expect any other move.
below is good for white.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O 2 5 . . . . , . . . . . , . . . | $$ | . . . 1 . 3 . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . 4 . . . . . . . . . . . . . . . | $$ | . 6 . . O . X . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . , O . X . O , . . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

this diag is optimal play for black. by jumping he exposed his weak point.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O 2 . . . . , . . . . . , . . . | $$ | . . . X 1 3 . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . X . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . , O . X . O , . . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

black has akward inefficient shape and white has clean shape.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O 4 . . . . , . . . . . , . . . | $$ | . . . X 2 X . . . . . . . . . . . . . | $$ | . . X 9 3 . . . . . . . . . . . . . . | $$ | . . 1 O 5 . . . . . . . . . . . . . . | $$ | . . 0 8 O . X . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . 6 , O . X . O , . . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . 7 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

below variation black lost toomuch and got nothing out of the fight.
so he had to find other way to play.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O O . . . . , . . . . . , . . . | $$ | . . . X O X . . . . . . . . . . . . . | $$ | . . X X X . 1 . . . . . . . . . . . . | $$ | . . X O X . . . . . . . . . . . . . . | $$ | . . O O O . X . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . O , O . X . O , . 2 . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . X . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

if white

tenuki then black will coverup the weakness "a" in sente and right back in the game.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . 6 . . . . . . . . . . . . . | $$ | . . . . . 4 5 . . . . . . . . . . . . | $$ | . . O O O 3 . . . , . . . . . , . . . | $$ | . . . X O X . . . . . . . . . . . . . | $$ | . . X X X . a . . . . . . . . . . . . | $$ | . . X O X . . . . . . . . . . . . . . | $$ | . . O O O . X . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . O , O . X . O , 1 . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . X . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

perfect timing for this peep.
:b5:

is a must.
later white played 'a' and made the game more complicated.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O O . 8 . . , . . . . . , . . . | $$ | . . . X O X . . . . . . . . . . . . . | $$ | . . X X X 3 2 . 4 . . . . . . . . . . | $$ | . . X O X . 6 . . . . . . . . . . . . | $$ | . . O O O 7 X . 5 . . . . . . . . . . | $$ | . . X . . . . . . a . . . . . . . . . | $$ | . . O , O . X . O , 1 . . . . , . . . | $$ | . . . O . . . . . . . . . . . X . . . | $$ | . . . . . . X . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

as i saied before black group shape was akward and inefficient like a "grape"
i think choi chulhan's style was exciting to watch and study.

i hope others can enjoy from my comment.
thank you kirby for posting the game.

Kirby · Post by **Kirby** » Tue Jan 18, 2011 6:39 pm

Thanks for the comments, Magicwand. The comment on the 6th diagram is particularly interesting.

ethanb · Post by **ethanb** » Tue Jan 18, 2011 11:13 pm

4th diagram (and comments, thanks Magicwand!) is the key for me. Wow. I wouldn't have thought about :w4:

if I were black either.

It's one of those moves where when you see it played, it's like lightning struck you. More than just his shape, it probably ruined black's state of mind for the rest of the game.

trout · Post by **trout** » Wed Jan 19, 2011 11:14 pm

Choi ChulHan just won the last game against Kong Jie giving NongShim cup to Korean Team.

Move 156 was magic bullet.

Life In 19x19

nongshim cup choi chulhan vs louiyang

nongshim cup choi chulhan vs louiyang

Re: nongshim cup choi chulhan vs louiyang

Re: nongshim cup choi chulhan vs louiyang

Re: nongshim cup choi chulhan vs louiyang

Re: nongshim cup choi chulhan vs louiyang

Re: nongshim cup choi chulhan vs louiyang