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by Gerd Isenberg
Thu Jun 13, 2019 3:27 pm
Forum: Computer Chess Club: General Topics
Topic: Widely unknown pioneering chess "paper machine" by Gunter Sсhliebs
Replies: 9
Views: 603

Re: Widely unknown pioneering chess "paper machine" by Gunter Sсhliebs

I never seen [4] (but started some attempts to obtain the scan of this article) <...> 4. Sсhliebs G. (1953). Über die Gründzuge eines Programms für eine Schachspielende Rechenmaschine / Funk und Ton, 1953, vol. 7, pp. 257—265. Hooray!! Here is the paper: https://yadi.sk/d/my7VqYaYaaLc1w And it look...
by Gerd Isenberg
Wed Jun 12, 2019 12:20 pm
Forum: Computer Chess Club: General Topics
Topic: Widely unknown pioneering chess "paper machine" by Gunter Sсhliebs
Replies: 9
Views: 603

Re: Widely unknown pioneering chess "paper machine" by Gunter Sсhliebs

In order not to create a separate topic for the sake of one message, I will write here. There is an interesting article by David Levy "Alan Turing on Computer Chess" from S. Barry Cooper, J. van Leeuwen "Alan Turing: His Work and Impact" about Turing's "paper machine": googlebooks Thanks! I missed ...
by Gerd Isenberg
Sun Jun 09, 2019 5:37 pm
Forum: Computer Chess Club: General Topics
Topic: The mystery of Alex Bernstein
Replies: 25
Views: 1183

Re: The mystery of Alex Bernstein

The most intriguing part from my point of view is "his flagging interest in mathematics revived by a kind woman who had known his father, a well-known European mathematician". Who was his father?.. Benjamin Abram Bernstein [https://en.wikipedia.org/wiki/Benjamin_Abram_Bernstein]? Felix Bernstein [h...
by Gerd Isenberg
Sun Jun 09, 2019 7:54 am
Forum: Computer Chess Club: General Topics
Topic: The mystery of Alex Bernstein
Replies: 25
Views: 1183

Re: The mystery of Alex Bernstein

Finally I've got some progress! :) McCorduck, P. (2004). Machines who think: a personal inquiry into the history and prospects of artificial intelligence (2. Edition). London: A.K. Peters. // https://books.google.ru/books?id=aH9QAAAAMAAJ Great finding! Pamela McCorduck was married to Joseph F. Trau...
by Gerd Isenberg
Sat Jun 08, 2019 4:56 pm
Forum: Computer Chess Club: General Topics
Topic: The mystery of Alex Bernstein
Replies: 25
Views: 1183

Re: The mystery of Alex Bernstein

Thank you both Roman and Sergei for providing that information on Shura-Bura's Program!
by Gerd Isenberg
Sat Jun 08, 2019 8:18 am
Forum: Computer Chess Club: General Topics
Topic: The mystery of Alex Bernstein
Replies: 25
Views: 1183

Re: The mystery of Alex Bernstein

As to Shura-Bura program the only source is: 1. В. Туманов. «Лучший ход» — за 58 секунд // Таль—Ботвинник: матч-реванш на первенство мира. Бюллетень Центрального шахматного клуба СССР. — 1961. — № 8. — С. 4—5. I've checked it and I'm not 100% sure that mysterious Shura-Bura program is not actually ...
by Gerd Isenberg
Fri Jun 07, 2019 8:14 pm
Forum: Computer Chess Club: General Topics
Topic: The mystery of Alex Bernstein
Replies: 25
Views: 1183

Re: The mystery of Alex Bernstein

Great, keep us informed, Sergei. Also on the Gunter Sсhliebs engine.
Do you have some information about early Soviet programs by Shura-Bura or Butenko?

Thanks & Best regards,
Gerd
by Gerd Isenberg
Fri Jun 07, 2019 10:09 am
Forum: Computer Chess Club: General Topics
Topic: The mystery of Alex Bernstein
Replies: 25
Views: 1183

Re: The mystery of Alex Bernstein

Hi Sergei, thanks for your efforts to find some information on Bernstein. McCarthy's quote from The Dartmouth Workshop--as planned and as it happened is interesting: Alex Bernstein of IBM presented his chess program under construction. My reaction was to invent and recommend to him alpha-beta prunin...
by Gerd Isenberg
Fri Mar 15, 2019 8:52 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: CPW bitscan with reset could someone explain this line?
Replies: 9
Views: 973

Re: CPW bitscan with reset could someone explain this line?

see also ... https://www.chessprogramming.org/Bitboard_Serialization#Scanning_with_Reset A win of abstraction is to use a combined bitscan with reset found bit routine. This is fine. But probably harder for compilers to generate optimal code in the if-do-while-sense, where reset last bit already set...
by Gerd Isenberg
Fri Mar 08, 2019 9:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess Programming Wiki
Replies: 34
Views: 19791

Re: Chess Programming Wiki

Hi crem and all others interested to contribute,
unfortunately CPW seems to have no way to register yourself or to demand registration - please send me a pm with suggested user name, and e-mail, then I will create an account.

Thanks & Best regards,
Gerd