This is a whole-board endgame problem from Ōhashi Hirofumi 6p’s book, 爽快！勝ち筋探し (Sōkai! Kachisuji-sagashi) or Refreshing! Searching for the winning play.
If the title sounds strange in English, it is because sōkai does not translate very well; ‘refreshing’ or ‘invigorating’ are technically correct translations, but Western go players would rarely use them for the feeling of relief …
The carpenter’s square or ichigō-masu (一合升, meaning a small wooden container with a volume of 0.1804 litres) is one of the more dreaded tsumego shapes, especially by kyū players, which makes it an excellent topic for a Sunday Problem.
Should Black go for the carpenter’s square, or is there a better option available?
Black to play.
On October 31, we will hold the first-ever Pixel Go Tournament on the Variant Go Server programmed by seequ! This tournament is free for everybody to participate, and the top two players will each get an ngd voucher for use in their studies. Besides ngd league participations, they can also be …
General announcement: our online league will hold no pairing and scheduled lecture in the second half of December, so that students and teachers alike can have a relaxing Christmas time with their friends and family.
If your online league subscription would normally be eligible for a December-II pairing, your subscription will instead carry over and you will get a pairing in the January-I pairing.
This shape appeared in one of Oscar’s games.
Black’s task, of course, is to live, but there are several ways to do so. The real problem is in finding the best way to live.
Black to play.
I am happy to report that my and Attila Egri-Nagy’s research ‘Derived metrics for the game of Go – intrinsic network strength assessment and cheat-detection’, which I linked on nordicgodojo.eu roughly a month ago, just passed peer review and will be presented in the CANDAR’20 symposium.
Given that we got promising early results and that the subject is …
My recent work got me again thinking about the nature of learning and understanding. More precisely, I got interested in thinking about the best way to use the ai in go studies.
Recent research (for example, Thinking, Fast and Slow by Daniel Kahneman) suggests that expertise in a domain is not a single skill but rather a large collection of …
This problem is also from Xuanxuan Qijing, or ‘The Gateway to All Marvels’. This problem is titled 野狐箭, or the ‘Fox-Catching Arrow’, apparently because the shape ‘looks like the arrow’s head’ – personally, however, I fail to see the resemblance.
While its name may be dubious, the problem itself is one of the most ingenious I have seen.
Streamed on Twitch on September 26, 2020.
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.