Now I regret not owing De Losbladige Schaakberichten from the 50's anymore. It got lost during my last emigration.
I remember Euwe writing an article in 1956 or 1957 about the BDG, but can't remember if he gave it a name. The article was mainly about Diemer's games obviously. It might very well be the case that it was just called Queen Pawns Opening. I do know 5...e6 was dubbed the Euwe Defence because he recommended it in said article; also the game Bogo-Diemer was there, giving 5...g6 the name Bogoljubow Defence (which shows again how silly BDG-nomenclature is).
There is at least one biography on Diemer. Isn't the answer there?
Otherwise somebody should go check it in the Max Euwe Centre or in The Hague's Royal Library.
Anyhow, Diemer's first book, published in 1957, was called Vom ersten Zug an auf Matt! : 25 Jahre Erfahrungen mit dem Blackmar-Diemer-Gambit.
http://d-nb.info/456453954It did not cause an explosion in The Netherlands, mainly because Donner ridiculed him in "De Tijd“, February 1958 already. That article has made it into The King.
Diemer's loss against Geza Fuster, Beverwijk 1958 did not help very much either.
It took a few years before the idea reached the other side of the Atlantic Ocean; as far as I could trace Dravnieks and Sneiders began to play it in corr. games in 1961. Serious OTB games are rare, so it's more like Diemers book caused a storm in a glass of water.
I lively can remember that Diemer's 1957 book wasn't sold out yet in the early 80's; I saw it in the publisher's store (Ten Have, Leidsestraat Amsterdam). What's more, it was actually about the Ryder Gambit. And it was crap. Gazillions of hardly annotated games with lots of exclams, no explanations, presented in an unsystematical way.
Gambit wrote on 09/24/11 at 23:00:07:
You need someone to systematize and describe the hows and whys of a new opening system. Milner-Barry and Richter, to the best of my knowledge, did not do that. It remained for Diemer to do that with his writings in the newspapers and chess press.
So actually Diemer did not do that either. There is a reason Tim Sawyer wrote as late as 1992 that
Quote:I simply got tired of consulting 20 or more chess books on the BDG for each of my postal games.