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Offline hoohoo
 Post subject: Some tesuji problems for your enjoyment!
Post #1 Posted: Tue Jun 29, 2010 2:05 pm 
Dies in gote

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Since a few weeks ago i finally got my Tesuji problem books i've decided to share the splendid! Here are a few problems of different difficulty and sort for you to try and solve!'

Read the comment section for some hints to each batch of the problems, black to move first in all of them.
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Offline Zwergesel
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #2 Posted: Wed Jun 30, 2010 9:32 am 
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Page 1, Problem D:
Click Here To Show Diagram Code
[go]$$B
$$ . . . . . |
$$ . . . . . |
$$ . X . X . |
$$ . X 3 O . |
$$ O . X O a |
$$ . O O X 1 |
$$ . . . 2 b |
$$ ----------[/go]

Black can't play a or b due to shortage of liberties!

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

:w10: connects, :b11: at a captures everything!


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

Anything but a next and white is easily captured!

Click Here To Show Diagram Code
[go]$$Wcm10
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . O O . O . O . . . . . . . X . . . |
$$ | . O X X X X X . . X . . . . X , . . . |
$$ | . O O X O O O X . . . . . . . . O . . |
$$ | . X X O O 5 O 4 . . . . . . . . . . . |
$$ | . X O X X 1 2 X . . . . . . . . . . . |
$$ | . . O O X 3 7 9 . . . . . . . O . . . |
$$ | . . . . X 6 8 . 0 . . . . . . . . . . |
$$ | . . O O O . O . . O . . . . . , . . . |[/go]

It's a loose ladder! :)

Click Here To Show Diagram Code
[go]$$Wcm20
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . O O . O . O . . . . . . . X . . . |
$$ | . O X X X X X . . X . . . . X , . . . |
$$ | . O O X O O O X 6 . . . . . . . O . . |
$$ | . X X O O O O X 5 7 8 . . . . . . . . |
$$ | . X O X X O X X 3 4 . . . . . . . . . |
$$ | . . O O X O O O 1 2 . . . . . O . . . |
$$ | . . . . X X X . X . . . . . . . . . . |
$$ | . . O O O . O . . O . . . . . , . . . |[/go]


No escape!
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Offline Marcus
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #3 Posted: Wed Jun 30, 2010 9:38 am 
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Zwergesel wrote:
Page 2, Problem B
...


:shock: That's some awesome reading. I'm usually pretty good with these types of problems, but I just stared blankly for a while at this one.
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Offline Zwergesel
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #4 Posted: Wed Jun 30, 2010 9:46 am 
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Marcus wrote:
Zwergesel wrote:
Page 2, Problem B
...


:shock: That's some awesome reading. I'm usually pretty good with these types of problems, but I just stared blankly for a while at this one.


Thank you! Although I have to admit, that I didn't read it all in my head! :oops:
I originally only read it to the end of the first diagram and thought I was done, but when I looked at the diagram before submitting my answer, I realized that 'a' worked, so I had to read some more! :mrgreen:

Concerning the rest of the problems: I think I know the right move for Page 1, Problem C, but can't read through all the variations! For Page 3, Problem B, I see a ladder, but it runs out of the diagram, so I don't know if it's supposed to be the solution!
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Offline hoohoo
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #5 Posted: Wed Jun 30, 2010 11:38 am 
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If a ladder runs out of "the zone" with nothing blocking it, the ladder works and probably is the solution.

Regarding Zwergesels solutions:
Both of your solutions are correct, impressive reading on the geta problem. Its easy reading but quite long :)
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Offline Zwergesel
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #6 Posted: Wed Jun 30, 2010 12:01 pm 
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hoohoo wrote:
If a ladder runs out of "the zone" with nothing blocking it, the ladder works and probably is the solution.


In that case I see this for Page 3, Problem B:
Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . 9 6 7 . . . . . . . . . . |
$$ | . . . O X X X 4 5 . . . . . . . . . . |
$$ | . . . O X O O 2 3 . . . . X . O . . . |
$$ | . . O , O X O 1 8 X . X . . . O . . . |
$$ | . . . . O X X O . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |[/go]

White connects and you get an ordinary ladder:

Click Here To Show Diagram Code
[go]$$Wcm10
$$ ---------------------------------------
$$ | . . . . . . X O X . . . . . . . . . . |
$$ | . . . O X X X O X . . . . . . . . . . |
$$ | . . . O X O O O X . . . . X . O . . . |
$$ | . . O , O X O 1 O X . X . . . O . . . |
$$ | . . . . O X X O 3 5 6 . . . . . . . . |
$$ | . . . . . . . 2 4 W W B . . O . O . . |
$$ | . . . . . . . . . B W W B . . . . . . |
$$ | . . . . . . . . . . B W W B X . X . . |[/go]


Wow I had a massive blind spot for this problem :D
Page 3, Problem A:
Click Here To Show Diagram Code
[go]$$Bc
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . X X O O O . |
$$ | . . . . . . . . . . . . X O O X X . . |
$$ | . . . . . . . . . . . 5 4 O X O X . . |
$$ | . . . . . . . . . . . 6 1 2 X O . O . |
$$ | . . X . . . . . . . . a O 7 X O . . . |
$$ | . . . , O . . . . , . . X 3 X O . . . |
$$ | . . . O . . . O . . . . . X O O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

If :w2: at :w4:, :b3: at :b5: captures
If :w4: at :w7:, :b5: at 'a' captures

Click Here To Show Diagram Code
[go]$$Wcm8
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . X X O O O . |
$$ | . . . . . . . . . . . . X O O X X . . |
$$ | . . . . . . . . . . . X O O X O X . . |
$$ | . . . . . . . . . . 2 O 1 O X O . O . |
$$ | . . X . . . . . . . 4 3 O X X O . . . |
$$ | . . . , O . . . . 8 7 5 X X X O . . . |
$$ | . . . O . . . O B W 9 6 . X O O . . . |
$$ | . . . . . . . . B W 0 . . . . . . . . |
$$ | . . . . . . . . . W B . . . . . . . . |
$$ ---------------------------------------[/go]
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Offline daniel_the_smith
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #7 Posted: Thu Jul 01, 2010 12:08 pm 
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The others are taking a while, but I found solutions to B and D on the first page:

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Offline hoohoo
 Post subject: Re: Some tesuji problems for your enjoyment!
Post #8 Posted: Thu Jul 01, 2010 2:53 pm 
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Good work so far from all of you! All the problems except C and D from page 1 is from Segoe's tesuji dictionary the other two from graded go problems for danplayers.

The Segoe book's is awesome and i recommend it for everyone that wants a good collection of different practical tesuji problems.

The only warning is page 1 problem A is quite hard. I couldnt solve it myself so cant really guess the level of it but the solution is quite sweet :)

If all becomes solved ill put out some new ones when i solved some more myself so i got some personal favourites.

Daniel_the_smith:

Gw both correct, i like the solution on B, not that incredibly hard but quite stylish when you see and understand it.
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