Weekly Go problems: Week 114

Here are the weekly Go problems for week 114.

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

Easy Go problem

You can’t let white have more than two liberties.

ggg easy 114 picture

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

 

Intermediate Go problem

How can black make use of his captured stone?

ggg intermediate 114 picture

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

 

Hard Go problem

Sometimes you need to ask a question before answering one.

go problems 114 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 Younggil An

Younggil is an 8 dan professional Go player with the Korean Baduk Association. He won the 'Prize of Victory of the Year' in 1998 for winning 18 consecutive pro games. After completing compulsory military service, Younggil left Korea to teach and promote the game Go overseas. Younggil now runs Younggil's Go School in Sydney, Australia and writes at Go Game Guru. You can find Younggil on Google+ and follow Go Game Guru on Facebook, Google+ or Twitter.

Comments

  1. Guillaume C. says:

    Love the hard one!!

    It’s so obvious yet so hard to find :)
    When you start thinking, you think “There’s only thing to try to create to hope to get enough time to make the 2 eyes” yet.. you can’t find it!! And when you do you’re like “Wooaah! How come I didn’t read that before!!??”

  2. For me both intermediate & hard were too hard even with trial & error. I couldn’t find the path at all.

    • David Ormerod says:

      For the hard problem, it becomes easier if you know that the door group can live (in seki at a minimum) when there’s a first line hane on one side or the other.

      That’s something that I assume most players of a certain level just internalize after seeing enough problems. For me it’s similar to seeing an L Group and knowing the related variations more or less by heart – which I assume is a shape you’re also quite familiar with, Dieter. The door group is basically the L group of the side.

      Once you know about the hane, the problem becomes “how can I get a hane or descent on the first line in sente?”

      The intermediate problem is perhaps more abstract. Years ago, when I was a low dan level player, I was lucky enough to receive a teaching game from Joanne Missingham. She wasn’t a pro yet then, and was quite young, but she still crushed me.

      The joseki that this problem is based on came up in the game and I still remember clearly that I wasn’t sure how to continue. After thinking for a while, I haned at P2 – the idea was right, but the move order was wrong. Joanne took the opportunity to bulge at O4 and then I couldn’t seal the group in anymore…

      • Yes, I should know the “door+hane” at my level. I probably did when I was a sharp competition player and studying but it didn’t make it into my long term memory, unlike the L-group.

        For the intermediate one, I essentially made the same mistake as you but kept struggling with it. I seemed to think “peep OR hane” and did not think of achieving both.

        Thanks for your helpful comment

      • P2 was my mistake too – move order, eh? :)

  3. richard turner says:

    what is the dragon strategy and the horse strategy?

  4. Intermediate:
    Diagram 2: 1-11
    What about White playing 12 at N3.
    Is that Ok for black because he obtained great potential toward up side trough the right bands (M-T)?.
    If is that, then: why didn’t Black played Atari with 11 at M4?
    Thank you.

    • Younggil An says:

      That’s a good question.
      Yes, you’re right. Even though white can capture the three stones with N3, it’s alredy good enough for black.
      If black ataris at M4 instead, white can still capture the three stones, and black needs to connect at N3 again. That’s why extending at N3 is better, because black can tenuki and play more important place. I hope my answer makes sense. :)

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