Difficult Tsumego

Alakazam · Post by **Alakazam** » Wed Jul 28, 2010 12:29 pm

Here's a Dan level Tsumego for you guys. I found it a bit tricky.

Click Here To Show Diagram Code: [go]$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . . O . | $$ . . X O O . . O . | $$ . . . . . . . . . | $$ -----------------[/go]

Black to do stuff

Marcus · Post by **Marcus** » Wed Jul 28, 2010 1:03 pm

This position looks familiar, but I don't have too much time to read through it right now. I have a line that looks like it could be good, though.

EDIT: I'm already finding other lines I need to handle with my solution, but it's fun to read out ... thanks Alakazam.

Magicwand · Post by **Magicwand** » Wed Jul 28, 2010 1:12 pm

Marcus wrote:This position looks familiar, but I don't have too much time to read through it right now. I have a line that looks like it could be good, though.

EDIT: I'm already finding other lines I need to handle with my solution, but it's fun to read out ... thanks Alakazam.

I'm currently thinking along these lines:

$$c Black to play
$$ . . . X X X X X . |
$$ . . . X O . . X . |
$$ . . . X O . X O X |
$$ . . X . O . 7 O 2 |
$$ . . X O O . 5 O 1 |
$$ . . . . . . 4 3 6 |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . 7 O 2 | $$ . . X O O . 5 O 1 | $$ . . . . . . 4 3 6 | $$ -----------------[/go]

$$c Black to play
$$ . . . X X X X X . |
$$ . . . X O . . X . |
$$ . . . X O . X O X |
$$ . . X . O . B O W |
$$ . . X O O 8 B O C |
$$ . . . . . 9 W C W |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . B O W | $$ . . X O O 8 B O C | $$ . . . . . 9 W C W | $$ -----------------[/go]

I haven't looked at variations yet to see if there's a better line, but this looks promising.

Marcus · Post by **Marcus** » Wed Jul 28, 2010 1:21 pm

Magicwand wrote:
Marcus wrote:This position looks familiar, but I don't have too much time to read through it right now. I have a line that looks like it could be good, though.

EDIT: I'm already finding other lines I need to handle with my solution, but it's fun to read out ... thanks Alakazam.

I'm currently thinking along these lines:

$$c Black to play
$$ . . . X X X X X . |
$$ . . . X O . . X . |
$$ . . . X O . X O X |
$$ . . X . O . 7 O 2 |
$$ . . X O O . 5 O 1 |
$$ . . . . . . 4 3 6 |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . 7 O 2 | $$ . . X O O . 5 O 1 | $$ . . . . . . 4 3 6 | $$ -----------------[/go]

$$c Black to play
$$ . . . X X X X X . |
$$ . . . X O . . X . |
$$ . . . X O . X O X |
$$ . . X . O . B O W |
$$ . . X O O 8 B O C |
$$ . . . . . 9 W C W |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . B O W | $$ . . X O O 8 B O C | $$ . . . . . 9 W C W | $$ -----------------[/go]

I haven't looked at variations yet to see if there's a better line, but this looks promising.

i dont think that is the answer.
$$c Black to play
$$ . . . X X X X X . |
$$ . . . X O . . X . |
$$ . . . X O . X O X |
$$ . . X . O . . O 2 |
$$ . . X O O . 4 O 1 |
$$ . . . . . . . 3 . |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . . O 2 | $$ . . X O O . 4 O 1 | $$ . . . . . . . 3 . | $$ -----------------[/go]

@Magicwand

Alakazam · Post by **Alakazam** » Wed Jul 28, 2010 1:51 pm

Isn't it tricky? ;p

It looks like an easy problem, but it took me unexpectedly long, at least 5 mins.

Alakazam · Post by **Alakazam** » Wed Jul 28, 2010 11:36 pm

*Ahem.....

There is no answer...

XD

I thought I solved it, but then someone asked me to tell them, and I said not yet. Then I went to look at it again to make sure, and I found a problem. I tried for a whole longer and failed. I had a 9d on KGS try, and fail... There is no solution, sorry! My book was from King's Baduk Center, where I studied for 5 months in korea, and all the other problems have solutions...

Hahah

For those of us who worked it out in our heads only, we gained something anyway...! Not a waste of time.

logan · Post by **logan** » Thu Jul 29, 2010 2:02 am

Alakazam wrote:*Ahem.....

There is no answer...

XD

I thought I solved it, but then someone asked me to tell them, and I said not yet. Then I went to look at it again to make sure, and I found a problem. I tried for a whole longer and failed. I had a 9d on KGS try, and fail... There is no solution, sorry! My book was from King's Baduk Center, where I studied for 5 months in korea, and all the other problems have solutions...

Hahah

For those of us who worked it out in our heads only, we gained something anyway...! Not a waste of time.

Tricky indeed.

unkx80 · Post by **unkx80** » Thu Jul 29, 2010 8:13 am

Late last night I took a look at that problem, and never found a solution. I thought, I must have been too tired.

I modified the problem a little bit, and it is shown below. There should be a solution to this problem, although I don't know whether the solution is unique.

Click Here To Show Diagram Code: [go]$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X . X . | $$ . . . X O . X O X | $$ . X . X O . . O . | $$ . . X O O . . O . | $$ . . . . . . . . . | $$ -----------------[/go]

Alakazam, how would you rate this problem?

Magicwand · Post by **Magicwand** » Thu Jul 29, 2010 8:27 am

unkx80 wrote:Late last night I took a look at that problem, and never found a solution. I thought, I must have been too tired.

I modified the problem a little bit, and it is shown below. There should be a solution to this problem, although I don't know whether the solution is unique.

$$c Black to play
$$ . . . . . . . . . |
$$ . . . . . . X . . |
$$ . . . X X X . X . |
$$ . . . X O X . X . |
$$ . . . X O . X O X |
$$ . X . X O . . O . |
$$ . . X O O . . O . |
$$ . . . . . . . . . |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X . X . | $$ . . . X O . X O X | $$ . X . X O . . O . | $$ . . X O O . . O . | $$ . . . . . . . . . | $$ -----------------[/go]

Alakazam, how would you rate this problem?

i hope this is not another problem without answer...
i still dont see any logical answers... :evil:

Kirby · Post by **Kirby** » Thu Jul 29, 2010 9:52 am

Magicwand wrote:
unkx80 wrote:Late last night I took a look at that problem, and never found a solution. I thought, I must have been too tired.

I modified the problem a little bit, and it is shown below. There should be a solution to this problem, although I don't know whether the solution is unique.

$$c Black to play
$$ . . . . . . . . . |
$$ . . . . . . X . . |
$$ . . . X X X . X . |
$$ . . . X O X . X . |
$$ . . . X O . X O X |
$$ . X . X O . . O . |
$$ . . X O O . . O . |
$$ . . . . . . . . . |
$$ -----------------

Click Here To Show Diagram Code
[go]$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X . X . | $$ . . . X O . X O X | $$ . X . X O . . O . | $$ . . X O O . . O . | $$ . . . . . . . . . | $$ -----------------[/go]

Alakazam, how would you rate this problem?

i hope this is not another problem without answer...
i still dont see any logical answers...

unkx80 · Post by **unkx80** » Thu Jul 29, 2010 11:39 pm

Kirby's solution is exactly what I have in mind.

Life In 19x19

Difficult Tsumego

Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego

Re: Difficult Tsumego