This presentation is in some ways the exact opposite of the previous one. That one dealt with openings (practically every Sicilian variation), this one with endings. That one covered a wide range of material on a superficial level, while this one looks at a single ending in considerable depth. The last video was very much abstracted from real games and events, but this one focuses very tightly on not only a specific game, but a controversy surrounding it.
The game I'm referring to is the game Keres-Botvinnik, from the third cycle of the 1948 World Championship match-tournament. There's good reason to think that Keres was pressured not to out-do Botvinnik in the event (see this essay for a good survey of the documentary evidence), and some (not me) think it went to the point that Keres actually threw his first four games against Botvinnik, only winning the last one when it no longer mattered. (In fact, some go on to say that Botvinnik threw the last one, to make sure Reshevsky wouldn't finish ahead of Keres!)
As part of the case for the "Keres threw the games" conclusion, they point to particular positions where Keres' play seemed especially suspect, and the game in question offers a favorite example. Rather than make the whole case here, however, I refer you to my new video. You'll find all the elaboration you could want there, along with some amusing stories, plenty of analysis - and plenty of analytical errors, including some embarrassing ones by those who think the fix is in.
So have a look - it's free, available on-demand for the next month, and requires no special software - and decide for yourself. My judgment: while I think it's likely that Keres felt some general pressure, I doubt that it came anywhere near the point where he was told or felt compelled to throw the games. I say that the fix is out.

