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9X9 Can you solve my Puzzle (if there is a solution)?
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Author:  Go_Japan [ Wed Feb 22, 2012 3:04 am ]
Post subject:  9X9 Can you solve my Puzzle (if there is a solution)?
I recently played this game on OGS and lost. After a few moves, I could not find any way to win as white. I am wondering if my analysis was correct.
Can anyone find a way for white to win the game from move 13 w to play to the end?

Thanks everyone!



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335079-23_dobromila-vs-kokusai.sgf [653 Bytes]
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Author:  emeraldemon [ Wed Feb 22, 2012 1:24 pm ]
Post subject:  Re: 9X9 Can you solve my Puzzle (if there is a solution)?
I think there's still too much play left in the game at move 13. It does look better for black, but it looks like it could get pretty complicated:

Click Here To Show Diagram Code
[go]$$Wcm14 What if play goes this way?
$$ -------------------
$$ | . . . . . . . . . |
$$ | . . 5 . . . . . . |
$$ | . . , 2 X . X . . |
$$ | . . 3 O O X . . . |
$$ | . . . . X O X . . |
$$ | . . . . O O X . . |
$$ | . . O . 1 X , . . |
$$ | . . . . . 4 . . . |
$$ | . . . . . . . . . |
$$ -------------------[/go]


Click Here To Show Diagram Code
[go]$$Bcm19 Seems tricky
$$ -------------------
$$ | . . . . . . . . . |
$$ | . . O . . 4 . . . |
$$ | . 2 1 X X . X . . |
$$ | . . O O O X . . . |
$$ | . . . . X O X . . |
$$ | . . . . O O X . . |
$$ | . . O . O X , . . |
$$ | . . . 3 . X . . . |
$$ | . . . . . . . . . |
$$ -------------------[/go]
Author:  topazg [ Wed Feb 22, 2012 1:58 pm ]
Post subject:  Re: 9X9 Can you solve my Puzzle (if there is a solution)?
Click Here To Show Diagram Code
[go]$$Bcm19
$$ -------------------
$$ | . . . . . . . . . |
$$ | . 3 O . . . . . . |
$$ | . 2 1 X X . X . . |
$$ | . . O O O X . . . |
$$ | . . . . X O X . . |
$$ | . . . . O O X . . |
$$ | . . O . O X , . . |
$$ | . . . . . X . . . |
$$ | . . . . . . . . . |
$$ -------------------[/go]


Better for Black I think :)

Click Here To Show Diagram Code
[go]$$Wcm22
$$ -------------------
$$ | . 1 . . . . . . . |
$$ | 3 X O . . . . . . |
$$ | . O X X X . X . . |
$$ | . 2 O O O X . . . |
$$ | . . 4 5 7 O X . . |
$$ | . . . 6 O O X . . |
$$ | . . O 8 O X , . . |
$$ | . . . 0 9 X . . . |
$$ | . . . . . . . . . |
$$ -------------------[/go]
Author:  Go_Japan [ Thu Feb 23, 2012 5:25 am ]
Post subject:  Re: 9X9 Can you solve my Puzzle (if there is a solution)?
Thank you for the replies. I take it by the lack of other suggestions that white could not win.

I appreciate the feedback.
Author:  topazg [ Thu Feb 23, 2012 1:30 pm ]
Post subject:  Re: 9X9 Can you solve my Puzzle (if there is a solution)?
I don't think I could win at move 13 anyway as White - I think the mistake may have come on moves 6 and 8 - my gut feeling is, letting Black build up that size of a side, something that threatens to live on the other side of the board may be required at that point.
Author:  Go_Japan [ Thu Feb 23, 2012 2:30 pm ]
Post subject:  Re: 9X9 Can you solve my Puzzle (if there is a solution)?
topazg wrote:
I don't think I could win at move 13 anyway as White - I think the mistake may have come on moves 6 and 8 - my gut feeling is, letting Black build up that size of a side, something that threatens to live on the other side of the board may be required at that point.


I agree. 6 now looks too deep. The intent was to split black, but I didn't read it through well. Thanks for the feedback.
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