Here are the weekly Go problems for week 22.
Black plays first in all problems and all solutions are labeled ‘correct’. Have fun!
Easy Go problem
We solved a similar problem last week, so…
Intermediate Go problem
White appears to be connected, until you find the vital point.
Hard Go problem
There are only a few moves to try here, but pay attention to the move order.
Still want more Go problems?
For more high quality problems, have a look at the life and death books and tesuji books in our Go book shop.
Discuss other possible moves
If you have any questions or want to discuss these problems, please leave a comment below at any time. You can use the coordinates on the problem images to discuss possible moves with other readers.
You can also download the problem file and review variations by clicking [link] on the left side of each problem. You'll need some software to open the .sgf file you download.
About David Ormerod
Love the second problem, very peculiar!
How do find the correct solution? I can kill w stones but the comment is often end of variation rather than correct.
When it says ‘end of variation’ it means there’s no variation in the solution file for the move you tried. Maybe because that move doesn’t work, or maybe because I just didn’t include a variation for it.
If there’s are some moves which you think work, you can leave a comment here to discuss them with everyone else and see what other people think. You can use the coordinates on the problem images to write a sequence of moves that other players will understand.
I’ve been wondering why your diagrams don’t match up to the right letter since this is a 19 by 19 board, and as a result the letters in the link of the solution. When I looked at this one, I realized that you skipped the letter “I” in the diagrams. Just thought I should let you know.
Hey Aaron! This is done intentionally. I had some confusion over the same thing, but I found out on KGS that the I is skipped because it can be mistaken for L and J. I’m not sure of the validity of it, but that’s what I was told.
This seems to be true, this has been done a long, long time ago. It was because of the adjacent i and j. I guess these days such a decision never would have been taken, a confusing deviation of an obvious standard.
That’s right, it’s a convention in Go to omit the letter ‘i’. You’ll notice this in most Go software. Incidentally Aaron, you should use a program like SmartGo: http://www.smartgo.com/ to view the files instead of trying to read them yourself.
I also asked about the omission of ‘i’ when I first started playing Go and was told something similar to what Paul said just above. I vaguely remember that in maths the letter ‘i’ is also sometimes omitted to avoid confusion with the imaginary number ‘i’… I’m not sure if that’s related in any way, but it would be peculiar if it were
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i have the solution for the hard problem, but at the end of sequence it’s writing “end of sequence” instead of correct???
Hi Davide, it will say that if I haven’t provided a response for one of your moves in the solution file. It doesn’t necessarily mean it’s wrong. If you want to discuss another possible solution with other readers, just leave a comment with your sequence here. That’s what the comments are for
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I kind of solved the hard problem. However, I have yet to figure out why w cannot respond at C1 at the beginning. I haven’t found a way to kill w after C1
I think black can take advantage of a shortage of liberties in that case.
I figure if w goes C1, b should go J1. This way it can kill w if there is no w on the right. Am I right?
Yes, that’s right! I remember reading that out too when I was solving this problem myself, but it looks like I forgot to provide that line in the solutions file. I’ve updated it now, thanks
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Yep! I saw it. In fact, b can make a clean kill without worrying about anything on the right. I didn’t figure that out until I saw your updated comments. Thank you for adding it!
In the hard problem, after b G1, i don’t understand why w captures D1, it could just G2 or H1 and there’s no threat of death, w has two eyes. right?
bE5.
oh i see. ty.
This is the first time I had all of them right in the first try…
The last one was more luck than wisdom though ^^. Nice problems!
Well done Tamara
. Keep it up!
How do you find the correct solution? Often I kill the. W stones but the program never says”correct”.
download the SGF file by clicking on “link” and play it.
Hi Richard,
I sent you an email about this awhile back. Have you got an app like SmartGo on your iPad and are you able to open the solution files in it?
I’m proud. This is the first time I actually took the time and put up the effort to find all solutions and extra variations without a single click. It had to take me 22 problem sets to find the stamina. No one should mind too much about this little personal victory, but since I’ve reported weekly, here it is.
Well done Dieter! I’m happy to hear that
. Practice makes perfect, as they say… 
intermediate one too hard olololol. i didnt manage to do it
DDD
Keep trying, the first move is strange, but there are only so many moves to consider
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