Interesting high dan tsumego

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tchan001
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Interesting high dan tsumego

Post by tchan001 »

Here's an interesting tsumego which has recently stumped a good friend on KGS recently. From a somewhat recent Japanese problem book for dans. Enjoy
Black to move

Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O . . . O X X . .
$$ | . X . . O . X . . . .
$$ +-----------------------[/go]
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A blog on Asian go books, go sightings, and interesting tidbits
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Re: Interesting high dan tsumego

Post by lovelove »

:mrgreen:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 7 O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 5 4 1 O X X . .
$$ | . X 6 3 O 2 X . . . .
$$ +-----------------------[/go]
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Re: Interesting high dan tsumego

Post by logan »

lovelove wrote::mrgreen:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 7 O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 5 4 1 O X X . .
$$ | . X 6 3 O 2 X . . . .
$$ +-----------------------[/go]

What did you receive in this variation?
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O . . 1 O X X . .
$$ | . X . 3 O 2 X 4 . . .
$$ +-----------------------[/go]
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ez4u
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Re: Interesting high dan tsumego

Post by ez4u »

logan wrote:
lovelove wrote::mrgreen:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 7 O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 5 4 1 O X X . .
$$ | . X 6 3 O 2 X . . . .
$$ +-----------------------[/go]

What did you receive in this variation?
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O . . 1 O X X . .
$$ | . X . 3 O 2 X 4 . . .
$$ +-----------------------[/go]


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


Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 5 O O X . , .
$$ | . X O 6 O . O X . . .
$$ | . X O 7 1 X O X X . .
$$ | . X 2 X O W 3 O . . .
$$ +-----------------------[/go]

:w4: at the marked stone
Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21
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Re: Interesting high dan tsumego

Post by logan »

Yep, good job : )
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Re: Interesting high dan tsumego

Post by Dusk Eagle »

I think this alternate move for :b3: also works.
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 3 . 1 O X X . .
$$ | . X . . O 2 X . . . .
$$ +-----------------------[/go]
We don't know who we are; we don't know where we are.
Each of us woke up one moment and here we were in the darkness.
We're nameless things with no memory; no knowledge of what went before,
No understanding of what is now, no knowledge of what will be.
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Re: Interesting high dan tsumego

Post by tchan001 »

ez4u wrote:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 5 O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 3 1 X O X X . .
$$ | . X 4 X O O 2 O . . .
$$ +-----------------------[/go]


Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 5 O O X . , .
$$ | . X O 6 O . O X . . .
$$ | . X O 7 1 X O X X . .
$$ | . X 2 X O W 3 O . . .
$$ +-----------------------[/go]

:w4: at the marked stone

Not quite ez4u
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 2 1 X O X X . .
$$ | . X . X O O . O . . .
$$ +-----------------------[/go]


Dusk Eagle wrote:I think this alternate move for :b3: also works.
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 3 . 1 O X X . .
$$ | . X . . O 2 X . . . .
$$ +-----------------------[/go]

Not quite Dusk Eagle
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 3 . 1 O X X . .
$$ | . X 4 . O 2 X . . . .
$$ +-----------------------[/go]
http://tchan001.wordpress.com
A blog on Asian go books, go sightings, and interesting tidbits
Go is such a beautiful game.
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Re: Interesting high dan tsumego

Post by lovelove »

ez4u's reading is right.
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 2 1 X O X X . .
$$ | . X 5 X . 4 3 O . . .
$$ +-----------------------[/go]

Click Here To Show Diagram Code
[go]$$Bc 8 at 6, 9 at 7
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O 4 O X . . .
$$ | . X O 2 1 X O X X . .
$$ | . X 5 X 6 7 3 O . . .
$$ +-----------------------[/go]
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ez4u
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Re: Interesting high dan tsumego

Post by ez4u »

tchan001 wrote:
ez4u wrote:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 5 O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 3 1 X O X X . .
$$ | . X 4 X O O 2 O . . .
$$ +-----------------------[/go]


Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 5 O O X . , .
$$ | . X O 6 O . O X . . .
$$ | . X O 7 1 X O X X . .
$$ | . X 2 X O W 3 O . . .
$$ +-----------------------[/go]

:w4: at the marked stone

Not quite ez4u
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 2 1 X O X X . .
$$ | . X . X O O . O . . .
$$ +-----------------------[/go]


Yep, careless...
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O a O O X . , .
$$ | . X O 4 O . O X . . .
$$ | . X O 1 3 X O X X . .
$$ | . X 2 X O O 5 O . . .
$$ +-----------------------[/go]

If 4 at 5, "a" reverts to earlier diagram

Click Here To Show Diagram Code
[go]$$Wc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O O O a O X . . .
$$ | . X O X X X O X X . .
$$ | . X O X 2 1 X O . . .
$$ +-----------------------[/go]

White cannot fill at "a" instead of recapturing due to shortage of liberties.
Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21
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Re: Interesting high dan tsumego

Post by lovelove »

ez4u wrote:Yep, careless...

Any problems with my solution, or just an alternative?
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tchan001
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Re: Interesting high dan tsumego

Post by tchan001 »

lovelove wrote:ez4u's reading is right.
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 2 1 X O X X . .
$$ | . X 5 X . 4 3 O . . .
$$ +-----------------------[/go]

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

Model solution from book
is a ko :)
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O O O X . . .
$$ | . X O O 3 2 O X X . .
$$ | . X X X O 1 . O . . .
$$ +-----------------------[/go]
http://tchan001.wordpress.com
A blog on Asian go books, go sightings, and interesting tidbits
Go is such a beautiful game.
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Re: Interesting high dan tsumego

Post by Alguien »

Beautiful problem.

I like those chains of one liberty (the children of crane's nest) but they're still too hard for me to see.
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Re: Interesting high dan tsumego

Post by lovelove »

tchan001 wrote:
lovelove wrote:ez4u's reading is right.
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 2 1 X O X X . .
$$ | . X 5 X . 4 3 O . . .
$$ +-----------------------[/go]

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

Model solution from book
is a ko :)
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O . O O X . , .
$$ | . X O . O O O X . . .
$$ | . X O O 3 2 O X X . .
$$ | . X X X O 1 . O . . .
$$ +-----------------------[/go]

I see... :roll:
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Re: Interesting high dan tsumego

Post by Dusk Eagle »

Ah, :w8: is the move I missed.

Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . . . . . . . . .
$$ | . . . . . . . . . . .
$$ | . X X X X X X X . . .
$$ | . X O O 8 O O X . , .
$$ | . X O . O . O X . . .
$$ | . X O 3 7 1 O X X . .
$$ | . X 4 5 O 2 X 6 . . .
$$ +-----------------------[/go]
We don't know who we are; we don't know where we are.
Each of us woke up one moment and here we were in the darkness.
We're nameless things with no memory; no knowledge of what went before,
No understanding of what is now, no knowledge of what will be.
Top
User avatar
ez4u
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Re: Interesting high dan tsumego

Post by ez4u »

Dusk Eagle wrote:
Ah, :w8: is the move I missed.

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

Yes!
Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21
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