Search found 17043 matches

by bob
Tue May 26, 2020 1:13 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: PGN standard
Replies: 27
Views: 603

Re: PGN standard

Personally, I am a fan of SAN and always have been. It's the way things are written in chess books, game scores by humans, etc. It reads much more naturally to me (as a human). I didn't find it difficult to parse although a move generator is needed. It is needed in a chess engine anyway, so that is ...
by bob
Mon May 25, 2020 6:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: PGN standard
Replies: 27
Views: 603

Re: PGN standard

I've been using 1...e5 since 2001. I find incredible that not only it's incorrect, when people discuss what's correct it doesn't even get a mention as a possibility :shock: Not only that, ALL the correspondence chess games played at the Rybka Forum have used 1...e5 notation (as opposed to 1.. e5, 1...
by bob
Mon May 25, 2020 6:36 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: PGN standard
Replies: 27
Views: 603

Re: PGN standard

I think I would prefer "side on move" In the document the phrase active color refers to side on move (as also observed by Deberger for consistency). If you really insist on "side on move" I will add it with or like this. ... An en passant target square is given if and only if the last move was a pa...
by bob
Mon May 25, 2020 6:35 pm
Forum: Computer Chess Club: General Topics
Topic: Erratic eval from both A/B and NN in a single game.
Replies: 15
Views: 386

Re: Erratic eval from both A/B and NN in a single game.

Pasting it to Fritz 12 and copying it from there translates it to human :) [Event "NN longtime-testing"] [Site "?"] [Date "2020.01.08"] [Round "120"] [White "Lc0 0.23.1 384x30-t40-1705"] [Black "Stockfish 191210 bmi2"] [Result "1/2-1/2"] [ECO "A00"] [PlyCount "576"] [EventDate "2020.??.??"] [TimeCo...
by bob
Mon May 25, 2020 6:33 pm
Forum: Computer Chess Club: General Topics
Topic: Is the Latvian losing?
Replies: 21
Views: 530

Re: Is the Latvian Gambit losing?

As a side note, asking if Latvian Gambit is losing is like asking if Budapest Gambit is losing or Damiano Defence is losing. They are questions without answers IMHO because we do not have the tools for answer them. We could answer that 1.g4 loses by force though, so I wonder what makes such gambits...
by bob
Mon May 25, 2020 6:30 pm
Forum: Computer Chess Club: General Topics
Topic: Is the Latvian losing?
Replies: 21
Views: 530

Re: Is the Latvian losing?

I used to play this all the time (black obviously) when I needed a full point. It is filled with tactical opportunities. Is it winnable by black? Absolutely. Is it a forced win for white with perfect play? Probably, but not proven. But dangerous for white. Certainly. Dangerous for black as well. Di...
by bob
Mon May 25, 2020 6:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Sargon 1978 - Bringing it back to life
Replies: 17
Views: 674

Re: Sargon 1978 - Bringing it back to life

I think a higher-level language version of Sargon was published somewhere. And I think Slate did a "chess 0.5", maybe in Byte Magazine. And thinking back, maybe Personal Computing (I knew Harry Shershow pretty well.)
by bob
Mon May 25, 2020 6:20 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: NICE 1.2
Replies: 15
Views: 499

Re: NICE 1.2

I came to the conclusion that NICE is 95% programmer tool, hence I post it here. Version 1.2 is a significant improvement. 1. NICE now can make predictions with with a precision of 1 elo. The idea to invest 20 minutes before you put an engine change into cute-chess looks attractive to me when NICE ...
by bob
Sat May 23, 2020 5:10 pm
Forum: Computer Chess Club: General Topics
Topic: Erratic eval from both A/B and NN in a single game.
Replies: 15
Views: 386

Re: Erratic eval from both A/B and NN in a single game.

For the record, PGN was intended to be readable by both humans AND computers. NOT just computers. :) That almost made my head explode.
by bob
Sat May 23, 2020 5:05 pm
Forum: Computer Chess Club: General Topics
Topic: Is the Latvian losing?
Replies: 21
Views: 530

Re: Is the Latvian losing?

I used to play this all the time (black obviously) when I needed a full point. It is filled with tactical opportunities. Is it winnable by black? Absolutely. Is it a forced win for white with perfect play? Probably, but not proven. But dangerous for white. Certainly. Dangerous for black as well.