Weekly Go problems: Week 110

Here are the weekly Go problems for week 110.

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

Easy Go problem

It’s good style to live with as much territory as possible, but creating a shape which is firmly alive is your top priority.


Download SGF File (Go Game Record)


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


Intermediate Go problem

When you’re defending, you should still look for small opportunities to create weaknesses in your opponent’s shape. Even if you can’t exploit those weaknesses immediately, it still leaves potential for you to aim at later.


Download SGF File (Go Game Record)


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


Hard Go problem

This problem takes quite some reading to understand completely, but if you take your time, you’ll discover a deceptively simple answer.


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 Younggil An

Younggil is an 8 dan professional Go player with the Korean Baduk Association. He qualified as a professional in 1997 and won an award for winning 18 consecutive professional matches the following year. After completing compulsory military service, Younggil left Korea in 2008, to teach and promote the game Go overseas. Younggil now lives in Sydney, Australia, and is one of the founders of Go Game Guru. On Friday evenings, Younggil is usually at the Sydney Go Club, where he gives weekly lessons and plays simultaneous games.

You can follow Go Game Guru on Facebook, Twitter, Google+ and Youtube.


  1. On top of the 50+ variations already provided I’d like to suggest:

    1. correct first move
    2. Wa3
    3. Bb2
    4. Wc2
    5. Ba2
    6. Wa5

    This seems to be a valid solution too.

  2. For the hard one, d3 a3 then a5 yes? It had some variations I had to think through too.

  3. Benjamin Teuber says:

    In the intermediate one, white shouldn’t keima at M3 instead after the correct move – rather exchange R2 – S2 – S3 – S4 first. This will give some better yose later if white ever blocks at R7, as afterwards the hane at S6 will threaten a ko in the corner. But of course this is a little tough for an intermediate Go problem – just saying 🙂

    • Younggil An says:

      Thanks for the comment Benjamin,
      You’re right. 🙂 That’s a better way for white, but as you mentioned, that’s a little too tough I thought. 🙂

  4. WEB editor: Could you PLEASE include links to SGF of problems as well? [NOT the solutions].
    Or even better: embed those the SGF inside of RSS – so they will be automaticly downloaded and saved by RSS reader. (its useful for people without pernament internet access). Thank you.

  5. Why not descent at the right side as third move? I hate empty triangles.
    BTW, the right edge is missing in the problem diagram.

  6. Well, it is not a big deal but in the problem diagram of the intermediate problem there is no right edge ( at least with me ). It gives me the impression that the problem is located at the bottom but not in the corner. Instead of the empty triangle I would consider the descend at the right as move 3 in the solution. Probably I make the error to avoid the empty triangle too much.

    • Younggil An says:

      I see. Sorry about the trouble. I’ll soon fix the problem. You’re right that it’s good to avoid empty triangle shape. 🙂