Oscar on Moyō and Whole-Board Plans

Streamed on Twitch on March 27, 2021.

Sunday Problem #42

This problem is of dubious origin. I copied this diagram from a tsumego collection composed by Ishida Yoshio 9p for the 24th Hiratsuka go festival; but, as there are some classic problems within the collection, it is not certain whether this is an original problem by Ishida or not.

Black to play.

Black’s cut of 1 is the …

Read the full post here!

Third ‘Go Jam’ on Saturday, March 20, 1pm EET

Today at 1pm Helsinki time, Jeff, Antti, and Mikkgo will host the third ‘Go Jam’ on Mikkgo’s Twitch channel.

While the content of the stream is of course go-related, it is more geared towards the philosophical and psychological side of playing the game rather than particular patterns. Some topics prepared for this time are:

  • dogmatic thinking in go,
  • do weaker players have more fun with the game, and
  • how to deal with winning and losing.

Towards the end of the stream, some Corona Cup 3 games will probably also be reviewed.

As usual, everybody is welcome to follow and participate!

Sunday Problem #41

This is an original tsumego by me. The solution sequence for this is not particularly outstanding, but as a tsumego this has value in that this position can easily result from a particular 3-3 invasion jōseki.

Black to play.

Black’s straightforward attack with 1–5 is correct, and the result is a two-step kō.
Black can also start by attaching at
a, after which white b and 1–5 follow; the result is practically the same.

Jeff on Enduring

Streamed on Twitch on March 13, 2021.

See full post to read kifu annotations!

Sunday Problem #40

This is a problem from Chō Chikun’s Yose no Tesuji (), or Endgame Tesuji.

Black to play.

Black’s attachment of 1 is the key move. If White tries to resist with 2, then he gets captured by 3–5.
Instead of 2, White has no choice but to play 3 himself and sacrifice the two stones to the right.

3rd Corona Cup starts on March 8

The 3rd Corona cup, organised by ngd teacher Lukáš Podpěra, will be held from March 8 to April 20. This time, the tournament is part of the 2020 European Grand Prix as a bonus point c class tournament.

As usual, two of our other teachers, me and Jeff, will work in the tournament anti-cheating department to ensure fair play. …

Read the full post here!

Sunday Problem #39

Last week we had an extremely difficult problem, so I picked an easier one for this time. This problem is so classic that it is hard to say where it is originally from; my guess would be one of the classic tsumego collections.

Black to play.

Black 1 and 3 are an exquisite move order. White has no resistance available and, up to 7, White is captured.
7 at 5
Black 1 here is wrong. This time, Black can only manage a kō for the white group’s life.

Oscar on Winning Won Games

Streamed on Twitch on February 27, 2021.


All times are in Helsinki time (eet with summer time).

League standings and pairings updated at the start of each month.

Public lectures on Twitch every 2nd and 4th Saturday of the month at 1 pm.

Jeff and Mikko stream on Twitch on Fridays at 6 pm.