Weekly Go problems: Week 130

Here are the weekly Go problems for week 130.

Black plays first in all problems and all solutions are labeled ‘correct’. Have fun!

Easy Go problem

There’s an eye bulging vital point in White’s shape.

 

Download SGF File (Go Game Record)

 


Download the solutions to the easy problem as an SGF or PDF file.

 

Intermediate Go problem

Try to anticipate how the capturing race will unfold before playing.

 

Download SGF File (Go Game Record)

 


Download the solutions to the intermediate problem as an SGF or PDF file.

 

Hard Go problem

Solving a ridiculous looking problem often requires a ridiculous looking move. 🙂

 

Download SGF File (Go Game Record)

 


Download the solutions to the hard problem as an SGF or PDF file.

 

Still want more Go problems?

You can find Go books packed full of life and death problems, tesuji problems and other valuable Go knowledge at the Go Game Shop.

Discuss other possible moves

If you have any questions or want to discuss any of these problems, please leave a comment below at any time. You can use the coordinates on the problem images to discuss a move or sequence of moves.

You can also download the solutions as a PDF or SGF file by clicking the links below each problem.

About David Ormerod

David is a Go enthusiast who’s played the game for more than a decade. He likes learning, teaching, playing and writing about the game Go. He's taught thousands of people to play Go, both online and in person at schools, public Go demonstrations and Go clubs. David is a 5 dan amateur Go player who competed in the World Amateur Go Championships prior to starting Go Game Guru. He's also the editor of Go Game Guru.

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Comments

  1. Nice to have the problems back !

    Question for problem 2. Can’t white get a ko: c5, b5, c6, b3, a5, a2, b1, a4 ?

    • David Ormerod says:

      Thanks Frank,

      Yes, White can try that and it would be a ko if play proceeds as in your sequence (btw you can also save the A2, B1 exchange as a ko threat).

      However, Black will eat the two cutting stones in sente instead, and it’s good enough for Black:

       

       

      This was intended more as a tesuji problem. Maybe I should have been clearer about that.

  2. Hi, I think for Intermediate problem, after w play move 6 at A4, b can also play at A5 isn’t it?
    So b can response like this
    w A7 => b A3
    w B1 => b B4
    w A3 => b B4
    w B4 => b B1

    • David Ormerod says:

      Hi Jay,

      You’re right, Black can also play A5 and win the capturing race.

      After Black A5 though, White A8 will be sente later and it wasn’t in the other two variations shown. It’s small difference, but things like that can make a big difference sometimes in real games. 🙂

  3. Dimitrios says:

    Finally guys, what took you so long?

    • David Ormerod says:

      Oh, we’re working on a book and other stuff. I’m looking forward to showing you the book soon 😉

  4. Those were fun again, thank you! Please, keep them coming every week, I ran out of practice!

    Kind regards,
    Paul

    • David Ormerod says:

      Haha, sorry Paul. The plan is to keep them coming weekly again now. 🙂

  5. Gil Dogon says:

    Wow, I sure missed your weekly problems, and hope they are coming back indeed. I was too impatient to sit and think properly on the intemediate one, and indeed it is quite taxing to do all variations in the head, so only half solved it. I guess in real game I would have had a 50% chance of getting it.

    However the hard one was just amazing, I would have never saw it in a million years. Even with the hint I was reduced to trial and error , and I tried almost any other move, until I got to the right one …

    • David Ormerod says:

      Hi Gil,

      Yes the hard problem is one of those alien shapes that would practically never occur in a real game and I think that’s what makes it hard. At least for me, solving the hard one is all about reading rather than instinct or anything else. I’ll try not to post too many problems like this 🙂

  6. Honestly, the intermediate problem was harder to read than the “hard” one and took me longer.

    • David Ormerod says:

      That’s interesting, but it seems to happen from time to time. Everyone sees the game differently.

      The intermediate problem isn’t that easy, but the first move is easy and a lot of the moves are forced (it’s mostly about knowing tesuji). The hard problem has no obvious starting point and requires more trial and error reading.

      If you’re good at reading and tend to see things logically, the hard problem could indeed be easier.

      • That’s because it’s hard to see the A2 extension while reading it out without playing the move. Someone who is more familiar with semeais could probably see that this is a good idea, but I wouldn’t play the first move in a real game before I read out the entire sequence (waste of ko threats).

        On the other hand, the correct move in the hard problem is not as easy to see, but once you have the right idea (either side is miai) then you’ve solved it.

  7. jangalf says:

    thanks and good to see you again!

  8. This is unrelated. But I had a dream last night about lee sedol. he is going to win another championship that would be the last one for him.

    • David Ormerod says:

      Haha. Ok, we’ll note your prediction and let’s see if it comes true…