Life In 19x19

Life in 19x19. Go, Weiqi, Baduk... Thats the life.
https://www.lifein19x19.com/

tesuji/tusmego from professional games

https://www.lifein19x19.com/viewtopic.php?t=8394

Page 1 of 1

tesuji/tusmego from professional games

Posted: Sat May 18, 2013 4:55 pm
by xed_over
Someone came into the Go center today and shared this tsumego/tesuji and story he got off a chinese website somewhere

from the 19th Fujitsu, Cho Chikun, playing white, resigned here because he couldn't see how to rescue his stones, upon which his opponent, Lee Sedol immediately showed him the move to save the white stones.

Can you find it?
Click Here To Show Diagram Code
[go]$$B white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | . . W . W X . . . X O . . . . . X . . |
$$ | . X . W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . . X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 5:06 pm
by Uberdude
It's 1am, but... Seki, which counts as saving right?
Click Here To Show Diagram Code
[go]$$W white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | . . W 1 W X . . . X O . . . . . X . . |
$$ | . X . W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . . X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Hmm do I need to push first, and then have to read b throw in...
Seems if we push first and b throws in then capture then the clamp works as b taking 2 stones we can recapture, and if he doesn't throw in then we connect.

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 5:10 pm
by Splatted
This seems too easy but I'll bite. What's wrong with
Click Here To Show Diagram Code
[go]$$W white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | 2 1 W . W X . . . X O . . . . . X . . |
$$ | . X . W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . 3 X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
or
Click Here To Show Diagram Code
[go]$$W white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | 4 X X . W X . . . X O . . O X . . . . |
$$ | 3 1 W . W X . . . X O . . . . . X . . |
$$ | 2 X . W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . 5 X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
etc

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 5:20 pm
by Kanin
Click Here To Show Diagram Code
[go]$$W +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | . . W . W X . . . X O . . . . . X . . |
$$ | 1 X . W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . . X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 5:30 pm
by amnal
Splatted wrote:This seems too easy but I'll bite. What's wrong with
Click Here To Show Diagram Code
[go]$$W white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | 2 1 W . W X . . . X O . . . . . X . . |
$$ | . X . W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . 3 X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Black 4 below causes problems...white can get a couple of stones, but black gets the important ones. Or if white connects, it seems black wins the capturing race due to white's shortage of liberties in the a and b areas.
Click Here To Show Diagram Code
[go]$$W white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | a O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | 2 1 W . W X . . . X O . . . . . X . . |
$$ | . X 4 W X . . . . . . . . . . . . . . |
$$ | . . . W X . X . . . . . . . . . O . . |
$$ | . 3 X X O O . . . . . . . . . . X X . |
$$ | . b O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 6:35 pm
by illluck
Hehe, this was posted on baidu tieba. Very neat tesuji.

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 8:27 pm
by logan
This game is covered in Go World Iss. 108 where it says that the move was discovered by Tsuruyama Atushi 6-dan.

Anyway, even if Cho escapes he would still be behind on the board.

I'm more surprised that Cho may not have seen this move. It's an uncommon move, but Cho's reading is famously thorough.

Also, fun fact: This was Cho & Yi's first official game against each other.

Continuation:
Click Here To Show Diagram Code
[go]$$Wm1
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . O X . . . . . . . O X . . . . |
$$ | . O X , O X . . . X O . . O O X . . . |
$$ | 9 X X 7 O X . . . X O . . O X . . . . |
$$ | 5 3 O 6 O X . . . X O . . . . . X . . |
$$ | 1 X 0 O X . . . . . . . . . . . . . . |
$$ | 4 . 8 O X . X . . . . . . . . . O . . |
$$ | . 2 X X O O . . . . . . . . . . X X . |
$$ | . . O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Click Here To Show Diagram Code
[go]$$Wm11 White is still behind
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . O X . . . . . . . O X . . . . |
$$ | . O X , O X . . . X O . . O O X . . . |
$$ | O X X O O X . . . X O . . O X . . . . |
$$ | O O O 1 O X . . . X O . . . . . X . . |
$$ | X X X O X . . . . . . . . . . . . . . |
$$ | X . X O X . X 6 . . . . . . . . O . . |
$$ | . X X X O O 5 . . . . . . . . . X X . |
$$ | 4 2 O O . . . . 7 , . . . . X X X O . |
$$ | . 3 . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

Re: tesuji/tusmego from professional games

Posted: Sat May 18, 2013 8:31 pm
by Bill Spight
I guess something is wrong with this. Too easy, eh?
Click Here To Show Diagram Code
[go]$$Wc white to save his stones
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | . O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | 0 9 W . W X . . . X O . . . . . X . . |
$$ | 8 X . W X . . . . . . . . . . . . . . |
$$ | 4 3 1 W X . X . . . . . . . . . O . . |
$$ | 6 2 X X O O . . . . . . . . . . X X . |
$$ | 7 5 O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Click Here To Show Diagram Code
[go]$$Wcm11 white to save his stones (cont.)
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | . O O . . . . . O X X . . X . . . . . |
$$ | . . O O . . . . O X . . . . . . . . . |
$$ | 3 X O X O O O O X O O . . . X . . . . |
$$ | . O X X X O X X X X O . . O X . . . . |
$$ | . O X . W X . . . . . . . O X . . . . |
$$ | 1 O X , W X . . . X O . . O O X . . . |
$$ | 2 X X . W X . . . X O . . O X . . . . |
$$ | X O W . W X . . . X O . . . . . X . . |
$$ | X X . W X . . . . . . . . . . . . . . |
$$ | X O O W X . X . . . . . . . . . O . . |
$$ | X X X X O O . . . . . . . . . . X X . |
$$ | O O O O . . . . . , . . . . X X X O . |
$$ | . . . O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Click Here To Show Diagram Code
[go]$$Bcm10 Variation
$$ +---------------------------------------+
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . X O . . . O X X O X . . . . . . . |
$$ | . X O X X . O . O O X O O O X X . . . |
$$ | . X O , . . . O . O X X . X O , X . . |
$$ | 4 O O . . . . . O X X . . X . . . . . |
$$ | 3 6 O O . . . . O X . . . . . . . . . |
$$ | . X O X O O O O X O O . . . X . . . . |
$$ | 5 O X X X O X X X X O . . O X . . . . |
$$ | 7 O X . W X . . . . . . . O X . . . . |
$$ | 1 O X , W X . . . X O . . O O X . . . |
$$ | . X X . W X . . . X O . . O X . . . . |
$$ | 2 O W . W X . . . X O . . . . . X . . |
$$ | X X . W X . . . . . . . . . . . . . . |
$$ | X O O W X . X . . . . . . . . . O . . |
$$ | X X X X O O . . . . . . . . . . X X . |
$$ | O O O O . . . . . . . . . O . O O O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
:w18: = nakade

Re: tesuji/tusmego from professional games

Posted: Sun May 19, 2013 3:58 am
by Splatted
amnal wrote:
Black 4 below causes problems...
I guess I'm not quite a 9p yet. :study:
All times are UTC-07:00
Page 1 of 1

Powered by phpBB® Forum Software © phpBB Limited