July Lecture II – Oscar on good and bad exchanges

Streamed on Twitch on July 25, 2020.


NGD online lecture reminder (July II)

Today, on July 25 at 1 pm Helsinki time, we will hold the second July lecture on Twitch.

This time Oscar 6d will hold a lecture on the topic: ‘Good and bad exchanges’. The examples used in the lecture are from past ngd league games.

As usual, the video of the lecture will be posted on this website afterwards, in case you cannot attend it live.


Tagua go stone

High-quality go stones are traditionally made of slate and shell. The cheapest, relatively thin stones cost around €150–200 for a set, and the highest-quality, thick stones can easily cost €10,000 or more.

Recently, in Japan it has become a problem that big enough hamaguri clams, which are used for white go stones, are getting increasingly rare due to overfishing. Because …

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Is ‘fair’ komi necessarily an integer?

One popular topic among go players is: what is the ‘correct’ value of the komi?

There are many ways to approach this question. For example in tournaments, it is useful to have the 0.5 in 6.5 (or 7.5) to prevent draws; after all, tournaments need a winner, and a game that ends in a tie often has to be replayed. …

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Sunday Problem #7

Black to play.

Solution
The result may look like a seki at first glance, but White is actually dead in a bulky five shape.

The (ten) thousand year kō

is a Japanese go term and word originally derived from Buddhism, where it stands for an ‘extremely long time’. This is fitting in go, as kō fights can easily continue for dozens of moves.

Kō fights are a most interesting phenomenon in go. Go is already special in that the simple stone-capturing rules lead to the emergent property of …

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Sunday Problem #6

This Sunday we have a set of two problems. What difference does Black’s extra liberty make?

Black to play in both problems.

Solution
KataGo’s solution
KataGo thinks the sequence from 1–5 is generally best for both sides: Black lives in gote while White makes a profit in the corner.
Tsumego solution
In tsumego terms, i.e., when life or death is …

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July Lecture I – Matias on Tenuki

Streamed on Twitch on July 11, 2020.


NGD online lecture reminder (July I)

Tomorrow, on July 11 at 1 pm Helsinki time, we will hold the first July lecture on Twitch.

This time Matias 5d will take the reins, focusing on the topic: ‘Tenuki: When and why?’

As usual, the video of the lecture will be posted on this website afterwards, in case you cannot attend it live.


History and overview of time control formats

Two recent occasions got me thinking about the time control systems used in go, and their relation to the game.

First was our teachers’ exhibition game that was covered in the second June lecture, which you can view here. In the lecture, Jeff remarks that while the game might be objectively even during the middle-game fighting, in reality it …

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