Correction:

I've written:

PS. Another trivia: that post-WWII, 1948, championship
competition of five players, each playing another
four games, and won by Botvinnik, was and perhaps
still is called in Russian a match-tournament.

Each of tyhem played another FIVE games, not four
(so, indeed, it was a tournament consisting of
something like mini-matches; however it was a tournament
in it's spirit more than a collection of matches
since they played five round-robin rounds, they didn't
play consecutive games with the same opponent).

Wlod