
This morning I opened an old book which I bought secondhand years ago - Levenfish and Smyslov, Rook Endings, Batsford 1971 - and the clipping above fell out. The title appears to translate as Endgame Theory And Practice.
Judging from the Helsingi- at the top it's from a Helsinki newspaper, though I don't know which, and it is undated though the games that appear place it no earlier than 1977. (Slightly later, would be my guess, since there is an ad on the back for Ken Russell's Valentino, which was released in 1977 and may not have arrived on Finnish screens straightaway.)
Interestingly the column makes reference to Leonard Barden's Chess Puzzle Book - takakansi seems to mean "back cover" and the study mentioned does indeed appear on the back cover of that book.
I can see nothing that indicates who wrote the column. Any useful speculation on the name of the author, and of the newspaper, and indeed anything else about the column, would be welcomed.