I have a chess book which I find great in terms of tone, formatting, etc., but the computer does not agree with some variations I gave it.
How much has chess changed since 1977? I imagine the rise of the computers (and computer chess) the last couple of decades had quite some impact. Is my book (published in 1977) still worth reading?
I'd like to know before I buy the other books of the series.
The series in question is "praktische schaaklessen" (practical chess lessons) by Euwe. The book I have is on opening theory, but the other parts are on the other aspects and stages of the game (it's a six book series).