Advertisement: Online Training League for 2k–2d Players

The ngd online league will take a break in November and December, but if you are a 2k–2d player and in search of serious online training games, you are in luck!

Davide Grasso, an ngd student, has this September created a training league with the aim of allowing its participants to play serious games in a friendly environment. …

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Sunday Problem #70

This problem is arranged from a shape that appeared in a recent game between Oscar and Lucas Neirynck 6d. The presence of White’s t14 stone affects the corner considerably, and the correct solution is nothing short of ingenious.

Black to play.

Solution
Failure (1)
The position of white ‘a’ suggests that black 1 should be an efficient move for procuring …

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Antti on Light and Heavy Stones and Sabaki

Streamed on Twitch on October 2, 2021.


Sunday Problem #69

I arranged this problem from a shape that appeared in one of my teaching games. The killing technique involved is not too special, but usually appears in the corner rather than on the side like this.

Black to play.

Solution
Failure
Black 1 is often a key point in this kind of a shape, but unfortunately so is white 2. …

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Sunday Problem #68

This is an original problem arranged from a shape that appeared in a recent tournament game by Lukáš.

Black to play.

Solution
Failure
The peep of 1 looks tempting, but is actually a mistake. After white 2, the white corner cannot be captured; black 3 is probably the strongest attempt, but after 4–8, the miai of ‘a’ and ‘b’ …

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Sunday Problem #67

This is a classic tesuji problem that appears for example in Lee Chang-ho’s collection of tesuji problems.

Black to play.

Solution
Failure
Simply connecting at 1 does not cut it for Black. White extends his corner group’s liberties with 2, threatening to live with 3; if Black tries to prevent this with 3, then white 4 first captures Black.
Solution …

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Oscar on Attacking: Investment and Profit

Streamed on Twitch on September 11, 2021.


Sunday Problem #66

This is a difficult variant of a classic tsumego that showed up in my recent lesson with Oscar.

Black to play.

Solution
Solution (1)
The hane of 1 is one way for the black group to live. If White descends to 2, Black jumps to 3, making a miai of ‘a’ and ‘b’.
Solution (2)
Things get more complicated if …

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Online League on break for November and December

Brief announcement: this year, November and December will be break months for the online league. We teachers will then have a short breather and also think of ways to improve the programme in 2022.

Currently it is still possible to join for the regular two months in September and October: the full option is €80 and the half option €50. After the September league starts, we take one-month subscriptions for October: these are €40 for the full option and €25 for the half option.


Sunday Problem #65

This is an easier classic problem to counterweight the recent difficult problems. While the solution sequence is straightforward, it is however still quite long and makes for good visualisation training.

Black to play.

Solution
Solution (1)
Pretty much the only thing Black can try in this problem is the 1–3 squeeze. Following . . .
Solution (2)
. . . …

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