Sunday Problem #30

Similarly to Sunday Problem #29, this is from the Igo Hatsuyō-Ron.

Black to play.

The solution of this problem involves a very rarely seen technique. Black has very limited space in which to form two eyes, and must therefore get crafty.
The moves 1–6 are commonsensical and, while black 7 looks like bad shape, it is also …

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Featured review: tam1998 v. GoDave89

Made publicly available on December 30, 2020.

See full post to read kifu annotations!

Sunday Problem #29

Since everybody hopefully has a bit more free time at this time of the year, I will briefly continue on the subject of difficult problems.

This problem is from no other than Igo Hatsuyō-Ron, probably the most difficult collection of classic tsumego. In the present day, players aspiring to become professional are the core audience of the book; historically, the …

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Toroid Go 101

With the Christmas Toroid Tournament upcoming, it is time to cover some basic toroid go strategy and tactics. Unlike pixel go, I am not extremely familiar with toroid go, but I have found it to be close enough to regular go except for the obvious difference of there being no edges.

Above is an example of a toroid go …

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NGD Christmas Toroid Tournament on December 27

List of registered participants

Introduction to toroid go


Format: Four-person leagues, followed by a knockout tournament with max. 8 players.

If two players get the same number of wins in a league, the winner of the mutual game advances to the knockout tournament.

If three players get the same number of wins in a league, they all advance. An …

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Sunday Problem #28

Sometimes it is good to spend time and effort trying to solve difficult problems. Even if you are unable to find the solution, this will improve your reading and, more importantly, help build character in a way that you will get less demotivated by difficult game positions.

This problem was first shown to me by ‘Bass’, a Finnish go player, …

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Oscar on Emotional Attachments

Streamed on Twitch on December 12, 2020.

Sunday Problem #27

Finland is celebrating its 103rd Independence Day today, and so, for this week’s problem, I ended up composing a tsumego in Finland’s shape.

There’s a lot of open space, which complicates reading, but as far as I could see there is only one solution.

Black to play.

A straightforward defence such as black 1, planning to sacrifice just …

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Online League Format Changes on January 1

Starting from 1 January 2021, we will make two changes to our online league format, one a large one and the other a smaller one.

Tl;dr version

  1. Pairings will be rolled out monthly instead of bimonthly, are determined directly by league standings, and your results will affect your league standing.
  2. Games that end because of mistakes and oversights will start …

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The Game Is Not over Yet – Go in the Post-AlphaGo Era

Recently, my and Associate Professor Egri-Nagy’s second go paper, The Game Is Not over Yet – Go in the Post-AlphaGo Era passed its peer review and got published in the Philosophies open access journal. You can read the article here.

Most of the main content in the article is by Mr Egri-Nagy, but I am responsible for the parts that relate to stronger go players’ point of view. There are also a few tangents to my Bachelor’s thesis, which I was happy to build on.