stone free or die: RE: dod (Константин Юрьевич Ла́нда) I think it would be safest to just say Oct 2022 at the moment, despite the Russian wiki(*).
I tried to trace the notice, which seems to have come from Russian Chess Federation (Федерация шахмат России [Federatsiya shakhmat Rossiyi]). They say he died after a long illness, but don't provide an exact dod.
<OCTOBER 12, 2022
Konstantin Landa passed away
Grandmaster was 50 years old
Grandmaster Konstantin Landa (1972-2022) passed away after a long illness. This is a heavy loss for the entire chess community. We express our deepest condolences to his family and friends.
Konstantin Landa was born and raised in Omsk. His first mentor was a strong master Yakov Rusakov, and after the first successes young Konstantin was assisted by grandmaster Alexander Goldin. The Omsk chess player studied at the sessions of the Yevgeny Sveshnikov school, and also ended up in the famous school of Mikhail Botvinnik, where at the age of 13 he defeated the 13th world champion Garry Kasparov in a simultaneous game session. Vice-champion of the USSR among youths (1989), after the collapse of the Union, he won the junior championship of Russia (1992).
In the 1990s, he consistently held the titles of master and grandmaster, but at the same time received a university education and worked for several years in a bank in the automation department, then in a private company. Organizer of the Russian Cup stage in Omsk. Online commentator of the World Cup in Khanty-Mansiysk (2011). In 1999 he moved to Germany, where he got the opportunity to become a chess professional.
Tournament winners: Oberwart (1994), Noyabrsk (1995), Ubeda (1999), Deizisau (2001), Furte (2002), Bad Wiesse (2002), Trieste (2005), Reggio Emilia (2006), Hamburg (2007) ), Vlissingen (2011), Senden (2011), Hamburg (2014). Winner of the club championships of many countries in the teams. At the peak of his career, Konstantin Landa 's rating reached 2678.
He was one of the leading coaches in the world, known for his extensive theoretical knowledge. For many years he worked with Arkady Naiditsch, helped the world champion Alexandra Kosteniuk and vice-world champion Alexandra Goryachkina, the champion of Russia Evgeny Alekseev, the talented Italian chess player Daniela Vocaturo, coached the men's team of Iran, the women's team of Kazakhstan.
One of the first to come up with specific proposals to combat cheaters, joined the FIDE-ASP joint anti-cheat commission and played a prominent role in exposing several dishonest chess players. >
https://ruchess.ru/news/all/ushel_i...
They, in turn, reference a link to <Obituary of the Chess Federation of the Omsk Region>, but I wasn't able to load it:
http://dodush15.omsk.obr55.ru/2022/...