Three links in the video's description (right-click the embedded video for its Youtube address) point to the games on Lichess.org.
While I was working on that post, I couldn't determine how those three links led to more information about the event in which they were played, the 2020 Champions Showdown. I still can't find a path, but I did find more info about the event itself and the games that were played. From Lichess.org (lichess.org/broadcast):-
- 2020 Champions Showdown: Chess 9LX, Day 1
- 2020 Champions Showdown: Chess 9LX, Day 2
- 2020 Champions Showdown: Chess 9LX, Final Day
It turns out that all three games explained by NM Denby were played on Day 3, the 'Final Day'. The Nakamura - Svidler game on that page has a tag that points to NM Denby's link, plus a couple of tools that point to other paths (lichess.org/study) for the same game.
What I'm missing now is a higher level page that points to days 1 through 3, although the 'Day 3' page does link to the first two days. While I was working on this current post I noticed that many of the chat comments were about finding games, e.g.:-
Why is the interface so bad that you need some random guy to post a link so you can find the games?
Why indeed? Anyway, I started to note similar lichess.org/broadcast links for the two previous editions of the Champions Showdown -- 2018 & 2019 -- and will post them when I think they're ready. Lichess is a-maze-ing!