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Nice little problem courtesy of Shin Jinseo 3p
http://prod.lifein19x19.com/viewtopic.php?f=15&t=12546		 Page 1 of 1
Author:  Uberdude [ Mon Dec 21, 2015 11:29 am ]
Post subject:  Nice little problem courtesy of Shin Jinseo 3p
Korean wonderkid Shin Jinseo 3p gave us this rather nice little problem from the 2nd game of the final of the 2nd Let's Run Park Cup. Black ignored white 1, what is white's awesome follow-up?

Click Here To Show Diagram Code
[go]$$W Black ignored 1, white to play
$$ | . O O O . . . . .
$$ | . X X O . . . . .
$$ | . . . . . . . X .
$$ | . . . X . X . . .
$$ | . . . . . . . . .
$$ | . . X O . O . X X
$$ | . . X . O X O O O
$$ | . . . 1 . . . . .
$$ | . . . . . . . . .
$$ +------------------[/go]


Answer:
Click Here To Show Diagram Code
[go]$$Wm2 black resigned after 6, but here is one continuation if black persists
$$ | . O O O . . . . .
$$ | . X X O . . . . .
$$ | . . 2 . . . . X .
$$ | . 1 . X . X . . .
$$ | . . 5 6 . . . . .
$$ | . 7 X O 9 O . X X
$$ | . . X 8 O X O O O
$$ | . 3 4 O 0 . . . .
$$ | . . . . . . . . .
$$ +------------------[/go]


Click Here To Show Diagram Code
[go]$$Wm12
$$ | . O O O . . . . .
$$ | . X X O . . . . .
$$ | . . X . . . . X .
$$ | . O . X . X . . .
$$ | . . O X . . . . .
$$ | . O X O O O 7 X X
$$ | . 5 X X O X O O O
$$ | . O X 6 X 4 . . .
$$ | . 3 1 2 . . . . .
$$ +------------------[/go]
Author:  Jhyn [ Mon Dec 21, 2015 1:24 pm ]
Post subject:  Re: Nice little problem courtesy of Shin Jinseo 3p
Very good problem. I had a hard time understanding the order of playing 2 and 4 (why not starting with 4 for example), but I think I get it now.
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