Sunday Problem #73

I arranged this problem from a shape that came up in the league game between Zdzieli and Ethelor.

Black to play.


Matias on How to Handle Weak Stones

Streamed on Twitch on October 23, 2021.


Sunday Problem #72

This is a common corner shape that all dan players should know by heart.

Black to play.

Solution
Solution
If there is something in the corner, it has to start from Black’s placement of 1. After this, White has two eye-forming bumping moves to choose from; generally, forming the farmer’s hat with white 2 here is best. After 3–6, it …

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Sunday Problem #71

I arranged this problem from a corner shape that can show up if you invade a two-space high enclosure from a star-point stone.

Black to play.

Solution
Original shape
The problem shape comes from the corner invasion sequence of 1–8. White’s descent of 7 is a bit of a new move, and solidly connecting instead used to be common; but …

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Oscar on How to Not Become a Caveman

Streamed on Twitch on October 9, 2021.


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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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