Here's a Dan level Tsumego for you guys. I found it a bit tricky.
$$c Black to play $$ . . . X X X X X . | $$ . . . X O . . X . | $$ . . . X O . X O X | $$ . . X . O . . O . | $$ . . X O O . . O . | $$ . . . . . . . . . | $$ -----------------
[go]$$c Black to play $$ . . . 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
Re: Difficult Tsumego
Posted: Wed Jul 28, 2010 1:03 pm
by Marcus
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 | $$ . . . . . . 4 3 6 | $$ -----------------
[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 | $$ . . . . . 9 W C W | $$ -----------------
[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.
Re: Difficult Tsumego
Posted: Wed Jul 28, 2010 1:12 pm
by Magicwand
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 | $$ . . . . . . 4 3 6 | $$ -----------------
[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 | $$ . . . . . 9 W C W | $$ -----------------
[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 | $$ . . . . . . . 3 . | $$ -----------------
[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]
Re: Difficult Tsumego
Posted: Wed Jul 28, 2010 1:21 pm
by Marcus
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 | $$ . . . . . . 4 3 6 | $$ -----------------
[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 | $$ . . . . . 9 W C W | $$ -----------------
[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 | $$ . . . . . . . 3 . | $$ -----------------
[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
Yup, I found that refutation, but I have to go pick up my son in a few minutes, so I don't have time to think about it more.
Re: Difficult Tsumego
Posted: Wed Jul 28, 2010 1:51 pm
by Alakazam
Isn't it tricky? ;p
It looks like an easy problem, but it took me unexpectedly long, at least 5 mins.
Re: Difficult Tsumego
Posted: Wed Jul 28, 2010 11:36 pm
by Alakazam
*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.
Re: Difficult Tsumego
Posted: Thu Jul 29, 2010 2:02 am
by logan
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.
Re: Difficult Tsumego
Posted: Thu Jul 29, 2010 8:13 am
by unkx80
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 . | $$ . . . . . . . . . | $$ -----------------
[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?
Re: Difficult Tsumego
Posted: Thu Jul 29, 2010 8:27 am
by Magicwand
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 . | $$ . . . . . . . . . | $$ -----------------
[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...
Re: Difficult Tsumego
Posted: Thu Jul 29, 2010 9:52 am
by Kirby
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 . | $$ . . . . . . . . . | $$ -----------------
[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...
$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X 0 X . | $$ . . . X O 8 X O X | $$ . X . X O 5 4 O 2 | $$ . . X O O 7 3 O 1 | $$ . . . 9 . . . . 6 | $$ -----------------
[go]$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X 0 X . | $$ . . . X O 8 X O X | $$ . X . X O 5 4 O 2 | $$ . . X O O 7 3 O 1 | $$ . . . 9 . . . . 6 | $$ -----------------[/go]
$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X O X . | $$ . . . X O O 2 O X | $$ . X . X O X O O O | $$ . . X O O X X O . | $$ . . . X 1 3 . . O | $$ -----------------
[go]$$c Black to play $$ . . . . . . . . . | $$ . . . . . . X . . | $$ . . . X X X . X . | $$ . . . X O X O X . | $$ . . . X O O 2 O X | $$ . X . X O X O O O | $$ . . X O O X X O . | $$ . . . X 1 3 . . O | $$ -----------------[/go]
