Search found 77 matches

by fabianVDW
Sun Dec 15, 2019 8:23 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CEGT - rating lists December 15th 2019
Replies: 1
Views: 244

Re: CEGT - rating lists December 15th 2019

Thanks for testing the newest version of FabChess, very good results aswell, basically on par with Asymptotes newest rating!
by fabianVDW
Thu Nov 28, 2019 11:06 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: The Mad Woman And The Octopus
Replies: 12
Views: 1063

Re: The Mad Woman And The Octopus

Thanks for the tournament Graham! Fab did pretty well in my opinion!
by fabianVDW
Sun Nov 24, 2019 2:47 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2019
Replies: 460
Views: 114226

Re: New engine releases 2019

I have a new version of Fabchess at: https://github.com/fabianvdW/FabChess/releases/tag/v.1.13 This version increases the playing strength of Fabchess, preparing its appearance in TCEC. Changes done: - Decrease LMR - Restructure the Transposition Table. New replacement schema and introduce buckets. ...
by fabianVDW
Sun Oct 27, 2019 9:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: deep history pruning
Replies: 8
Views: 1596

Re: deep history pruning

If you try the history scores indexed by ply, let me know how this worked out for you Vivien, this has been on my "Try THIS" list for along time now and I haven't come around to do it... But hearing what bob has said maybe it would be more sensible to have history scores indexed by subtree, but this...
by fabianVDW
Mon Oct 21, 2019 9:16 pm
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 34
Views: 2159

Re: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?

Well, the weights ('eval parameters') in a conventional evaluation are usually tuned, e.g. by Texel tuning. In fact the back-propagation used in a NN is nothing but Texel tuning of the NN. So my answer still stands. I like that you bring this up, because most are not aware of the similarity of the ...
by fabianVDW
Mon Oct 21, 2019 11:35 am
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 34
Views: 2159

Re: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?

Stockish does use a raw board representation as input for the evaluation, doesn't it? I think what Fabian was saying was that, in order to get a NN to evaluate a chess position reasonably well with just a few hundred weights you're proposing that, in your words, "The weights are piece (or piece-squ...
by fabianVDW
Mon Oct 21, 2019 9:24 am
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 34
Views: 2159

Re: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?

It depends on how you define "very well". If you are happy with Stockfish, the answer is "a couple of hundred". Conventional evaluations can be implemented as Neural networks with a one or two layers. The weights are piece (or piece-square) values, passer bonuses etc. If you are happy with micro-Ma...
by fabianVDW
Sun Oct 20, 2019 12:04 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: 76th Amateur Series Division 6
Replies: 12
Views: 1991

Re: 76th Amateur Series Division 6

Thanks Graham, very nice tournament!

Congrats to Luigi and ECE for having made quite the comeback in the later half of the tournament ;)
by fabianVDW
Sun Oct 13, 2019 12:53 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CEGT - rating lists October 13th 2019
Replies: 1
Views: 1137

Re: CEGT - rating lists October 13th 2019

Thanks a lot for testing FabChess :)