Search found 1955 matches

by Michel
Fri Oct 26, 2018 7:49 pm
Forum: Computer Chess Club: General Topics
Topic: Chess Engines with Opening Book
Replies: 18
Views: 873

Re: Chess Engines with Opening Book

Actually this is more or less just a gimmick, which has only disadvantages. The main problem of course is that modifying the book requires a recompile so that it can't be replaced easily. For me, the reason is that the embedded target hardware doesn't have a file system, which leaves a bytewise C a...
by Michel
Wed Sep 26, 2018 6:02 pm
Forum: Computer Chess Club: General Topics
Topic: Leela doesn't obey well the Elo curve set by regular engines
Replies: 9
Views: 2777

Re: Leela doesn't obey well the Elo curve set by regular engines

This is very interesting and may at first appear difficult to explain. However, consider an engine that randomly crashes in e.g. 20% of the games. Elo-wise, this would create the same phenomenon: such an engine would always lose at least 20% of the games, even against the weakest of opponents, and ...
by Michel
Mon Sep 03, 2018 11:49 pm
Forum: Computer Chess Club: General Topics
Topic: Chess.com 2018 computer chess championship
Replies: 279
Views: 32849

Re: Chess.com 2018 computer chess championship

I don't understand. If I add Leela's points in the cross table I get 7 points instead of 8...
by Michel
Tue Aug 21, 2018 4:31 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 7-men Syzygy attempt
Replies: 549
Views: 77660

Re: 7-men Syzygy attempt

Contrary to previous versions of the bases which took on the names of their creators, de Man chose to call them Syzygy (pronounced Sih-Zih-Gee), which means a pair of connected or corresponding things. Recall that RdM is a mathematician. A syzygy is in fact a specific (somewhat advanced) mathematic...
by Michel
Fri Aug 10, 2018 3:49 am
Forum: Computer Chess Club: General Topics
Topic: Leela is more Chess-domain specific than regular Chess engines
Replies: 30
Views: 2951

Re: Leela is more Chess-domain specific than regular Chess engines

It's a bit disappointing but not unexpected.

http://nautil.us/blog/this-neural-net-h ... ates-sheep

If a NN is confronted with a type of data different from what it is trained on, it will fail spectacularly.
by Michel
Fri Jul 13, 2018 7:01 pm
Forum: Computer Chess Club: General Topics
Topic: how will Leela fare at the WCCC?
Replies: 176
Views: 14200

Re: how will Leela fare at the WCCC?

Not sure if the result against K12.1 is really disappointing. The error bars indicate that both engines could still be equal strength...
by Michel
Sat May 19, 2018 8:07 am
Forum: Computer Chess Club: General Topics
Topic: LCZero: Progress and Scaling. Relation to CCRL Elo
Replies: 604
Views: 82197

Re: LCZero: Progress and Scaling. Relation to CCRL Elo

Guess what, why this happens is probably because of those who have a clue about how it may work probably wouldn't bother to argue with those self-complacent experts in the future way of developing chess engines. Come on. This is unfair. Lcero is the first public NN+MCTS engine. So nobody "has a clu...
by Michel
Sun May 13, 2018 12:51 pm
Forum: Computer Chess Club: General Topics
Topic: Bad day at the stock market?
Replies: 49
Views: 4954

Re: Bad day at the stock market?

Contributing users play >100,000 games per day so there should be sufficient significance to rule out any weird statistical explanations. I _think_ the training window is 500,000 games. So it may take a while before the effect of corrupted training data become visible. On the list of existing netwo...
by Michel
Sun May 13, 2018 11:58 am
Forum: Computer Chess Club: General Topics
Topic: Bad day at the stock market?
Replies: 49
Views: 4954

Re: Bad day at the stock market?

I don't see how a larger network can lead to better play all by itself. It will first have to be trained. I
I think it was trained for a while (using the existing training data) before it was released.
by Michel
Sun May 13, 2018 11:51 am
Forum: Computer Chess Club: General Topics
Topic: Bad day at the stock market?
Replies: 49
Views: 4954

Re: Bad day at the stock market?

Contributing users play >100,000 games per day so there should be sufficient significance to rule out any weird statistical explanations.
I _think_ the training window is 500,000 games. So it may take a while before the effect of corrupted training data become visible.