Weekly Go problems: Week 43

Here are the weekly Go problems for week 43.

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

Easy Go problem

It looks a lesson on making two eyes (and it is), but it’s a bit harder than it looks.

ggg easy 43 picture

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

 

Intermediate Go problem

White A was a mistake and now black has a fantastic opportunity – which is often overlooked by both players.

ggg intermediate 43 picture

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

 

Hard Go problem

If a move is absolutely sente, and you don’t want to trade, then you should imagine it’s already on the board. Be careful when capturing white’s lower right group.

go problems 43 picture

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 likes teaching, learning, playing and writing about the game Go. He's taught hundreds of people to play Go, including many children at schools in Australia. In 2010 David was the Australian representative at the 31st World Amateur Go Championships. He's a 5 dan amateur Go player and is the editor of Go Game Guru. You can find David on Google+ and follow Go Game Guru on Facebook, Google+ or Twitter.

Comments

  1. Michael Brown says:

    All win :)

  2. Damián says:

    I don’t know why, but I solve all problems at once. Just following the flow of the stones.

    Really great problems.

    • bakekoq says:

      btw, the easy one, I think I had see the similar once in cho chikun, but I can’t do it in just a glance. omg.. anyone?

      • David Ormerod says:

        Yes, I’m pretty sure something like this would be in Cho’s elementary problems, as well as lots of other problem collections. It’s a fairly fundamental shape in the corner.

    • David Ormerod says:

      Practise makes perfect Damián :).

  3. Any reason why intermediate variation 8 is labelled “Almost correct” instead of “Correct?” What’s wrong with it?

    • Mark Davidson says:

      Should W manage to escape during a Ko battle, B’s position is more solid with a B stone at J4 than at F1.

    • Cliff, in the “correct” variation black is thicker on the outside, in the “almost correct” variation black is at least 2 points better in endgame. I would have marked both simply as correct :)

      • I think it says “Also correct” not “Almost correct” and then he wrote, “black’s last move could also be at A.”

        Thanks for the great problems David.

    • David Ormerod says:

      Both are ok in this case, depending on your plan. Usually taking thickness facing the center is better style.

      Either way, if you got that far you solved the problem. You can play F1 instead if you’ve figured out how to live in white’s corner later on.

  4. jangalf says:

    The number one is not so easy to me…. The other two I had no problems.

    • haha. I’m with Jangalf too. isn’t it too difficult for the first one to be easy problem. but, I also know that problem is similar with Cho Chikun’s beginner problem books.

    • David Ormerod says:

      Yes, there’s a trick to it :).

  5. Hi David! Another question: I solved all the ones, but the hard. And when I looked at the PDF, all the moves made sense except the third one… If Black was to place a stone there, what good does it do Black since he is focusing on White’s lower corner and not an attack? Thank you!

    • David Ormerod says:

      Hi AJ, you must be improving :).

      Black 3 (you mean J2, right?) stops white from connecting to one of her other groups – either by playing K3 to capture two stones in a short ladder or J1 to connect along the bottom edge. So J2 is necessary to keep attacking white in the corner.

      Let me know whether that answers your question.

  6. i don’t understand the hard solution, isn’t better for white play M1 instead of L1 ?

    • because b can kill easily by playing o2 after w m1.. if w r1 b p1 and b has eye to kill w.. p1 and r1 are miai so w cant alive..
      L1 instead of M1 give w chance by testing b’s reading

      • David Ormerod says:

        Right, white dies anyway but you need to be ready to deal with L1.

        The ‘normal’ move in this sort of shape is black N1 at O2. It’s the vital point, but it doesn’t work in this case because white L1 is sente. That’s part of the point of this problem.

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