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Offline moyoaji
 Post subject: 4 Ladders and a Strange Wall...
Post #1 Posted: Wed Dec 11, 2013 7:09 am 
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At my club meeting on Tuesday night we got into a discussion about this board position.
Click Here To Show Diagram Code
[go]$$Wc The Striped Fuseki?
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . , . . . . . X . . . . . , . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . , . . . . . X . . . . . , . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . , . . . . . X . . . . . , . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


We noted how hard it would be to use ladders in this opening. So then I set up a ladder and read it out. If the situation is right you can totally use ladders! So, here is a fun exercise. Which of these ladders works? And which fail?

Click Here To Show Diagram Code
[go]$$Wc Fun with ladders!
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . X . . . . . . . . . |
$$ | . X W X . . . . . O . . . . O O . . . |
$$ | . X W X . . . . . X . . . . . B O . . |
$$ | . X W X . . . . . O . . . . . O . . . |
$$ | . X . . . . . . . X . . . X . . . . . |
$$ | . X . . . . . . . O . . . O . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . , . . . . . X . . . . . , . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . X . , . . . . . X . . . . . O O . . |
$$ | X W . . . . . . . O . . . . . B O . . |
$$ | X W W X . . . . . X . . . . O O . . . |
$$ | . X X . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

_________________
"You have to walk before you can run. Black 1 was a walking move.
I blushed inwardly to recall the ignorant thoughts that had gone through
my mind before, when I had not realized the true worth of Black 1."
-Kageyama Toshiro on proper moves

This post by moyoaji was liked by: schawipp
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Offline HermanHiddema
 Post subject: Re: 4 Ladders and a Strange Wall...
Post #2 Posted: Wed Dec 11, 2013 7:24 am 
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All ladders, for either color, work
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Offline schawipp
 Post subject: Re: 4 Ladders and a Strange Wall...
Post #3 Posted: Wed Dec 11, 2013 10:22 am 
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1) The ladder works i. e. it captures the enclosed color at the center wall.
2) The net, the loose ladder and the stone edge squeeze seem to work also....
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Offline illluck
 Post subject: Re: 4 Ladders and a Strange Wall...
Post #4 Posted: Wed Dec 11, 2013 10:29 am 
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As others have pointed out, all ladders work.

Also, since my instinct is to not read ladders :p

Click Here To Show Diagram Code
[go]$$Wc Fun with ladders!
$$ ---------------------------------------
$$ | . . 4 . . . . . . . . . . . . . . . . |
$$ | . 3 X O . . . . . X . . . . . . . . . |
$$ | . X W X . . . . . O . . . . O O . . . |
$$ | . X W X . . . . . X . . . . . B O . . |
$$ | . X W X . . . . . O . . . . . O . . . |
$$ | . X 1 . . . . . . X . . . X . . . . . |
$$ | . X . 2 . . . . . O . . . O . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . , . . . . . X . . . . . , . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . X . 6 . . . . . X . . . 9 . O O . . |
$$ | X W 5 . . . . . . O . . . . 8 B O . . |
$$ | X W W X . . . . . X . . . . O O . . . |
$$ | . X X . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

This post by illluck was liked by 2 people: Bonobo, Kirby
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Offline moyoaji
 Post subject: Re: 4 Ladders and a Strange Wall...
Post #5 Posted: Wed Dec 11, 2013 10:53 am 
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And now you all know the secret of the dual-colored wall...

It is not that no ladders work. It is that all ladders work! :twisted:
Click Here To Show Diagram Code
[go]$$Wc Top Ladders
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . X . . . . . . . . . |
$$ | . X W X . . . . . O . . . . O O . . . |
$$ | . X W X . . . . . X . . . O B B O . . |
$$ | . X W X . . . . . O . . O B B O . . . |
$$ | . X W W X . . . . X . O B X O . . . . |
$$ | . X X W W X . . . O O B B O . . . . . |
$$ | . . . X W W X . O X B B O . . . . . . |
$$ | . . . . X W W X . O C O . . . . . . . |
$$ | . . . , . X W W X X . . . . . , . . . |
$$ | . . . . . . X W W O X . . . . . . . . |
$$ | . . . . . . . X C X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . X . , . . . . . X . . . . . O O . . |
$$ | X W . . . . . . . O . . . . . B O . . |
$$ | X W W X . . . . . X . . . . O O . . . |
$$ | . X X . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Click Here To Show Diagram Code
[go]$$Wc Bottom Ladders
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . X . . . . . . . . . |
$$ | . X W X . . . . . O . . . . O O . . . |
$$ | . X W X . . . . . X . . . . . B O . . |
$$ | . X W X . . . . . O . . . . . O . . . |
$$ | . X . . . . . . . X . . . X . . . . . |
$$ | . X . . . . . . . O . . . O . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . , . . . X C X . . . . . , . . . |
$$ | . . . . . . X W W O X . . . . . . . . |
$$ | . . . . . X W W X X C O . . . . . . . |
$$ | . . . . X W W X . O B B O . . . . . . |
$$ | . . . X W W X . . X O B B O . . . . . |
$$ | . . X W W X . . . O . O B B O . . . . |
$$ | . X W W X . . . . X . . O B B O O . . |
$$ | X W W X . . . . . O . . . O B B O . . |
$$ | X W W X . . . . . X . . . . O O . . . |
$$ | . X X . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Use this knowledge carefully in the 0.002% of games where it comes up.

@illuck: You just had to play the net card... :razz:

_________________
"You have to walk before you can run. Black 1 was a walking move.
I blushed inwardly to recall the ignorant thoughts that had gone through
my mind before, when I had not realized the true worth of Black 1."
-Kageyama Toshiro on proper moves
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