Search found 17895 matches

by hgm
Tue Oct 22, 2019 7:51 am
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 23
Views: 676

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

You are right for counting, but I would not immediately see such neurons for determining for instance passers. More complex than counting, for sure, but still not very hard. For each square you would need a neuron that fires when there is a passer on that square. (And that for each player.) This ne...
by hgm
Mon Oct 21, 2019 7:47 pm
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 23
Views: 676

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

I don't see what point you want to make with your example. You can play 10 positionally good moves based on perfect positional knowlege, so you start the tactical phase with a guarantee that you can orce a path through it that makes you come out ahead. Unortunately you cannot find that path because ...
by hgm
Mon Oct 21, 2019 3:42 pm
Forum: Computer Chess Club: General Topics
Topic: Ataxx
Replies: 25
Views: 1020

Re: Ataxx

It is crappy to describe something as a move with an implied side effect when the board mutation really is a simple drop. Standard notation for adding a piece to the board on e4 is X@e4. Not e3e4, d4e4 or whatever. And FENs are supposed to use upper case or white, no matter what game they are for, o...
by hgm
Mon Oct 21, 2019 1:28 pm
Forum: Computer Chess Club: General Topics
Topic: Crazyhouse castling rules
Replies: 8
Views: 218

Re: Crazyhouse castling rules

Not sure what 'appendix' you are referring to. But it probably did not exist when the major servers came into existence. What makes you think they have any authority even now? Every idiot nowadays can make a website with a fancy domain name, and advertize whatever rules he pleases on it. Also note t...
by hgm
Mon Oct 21, 2019 1:08 pm
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 23
Views: 676

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

Ah, now you don't want just a NN, but one that learns. 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. Of course no one would claim ...
by hgm
Mon Oct 21, 2019 10:06 am
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 23
Views: 676

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?
by hgm
Mon Oct 21, 2019 7:37 am
Forum: Computer Chess Club: General Topics
Topic: Poll: How Many "Weights" Needed To Play "Known" Chess Very Well?
Replies: 23
Views: 676

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-Max...
by hgm
Sun Oct 20, 2019 9:06 pm
Forum: Computer Chess Club: General Topics
Topic: Ataxx
Replies: 25
Views: 1020

Re: Ataxx

Well, there is Win/XBoard, but it would not read this crappy move format. And the FENs are also not compliant with FEN rules.
by hgm
Sun Oct 20, 2019 3:56 pm
Forum: Computer Chess Club: General Topics
Topic: Can My Komodo 11 beat my friend rated 2575 USCF ?
Replies: 6
Views: 442

Re: Can My Komodo 11 beat my friend rated 2575 USCF ?

[Moderation] I have removed (hopefully) all other copies of this same message.
Please don't spam the forum.
by hgm
Sun Oct 20, 2019 1:47 pm
Forum: Computer Chess Club: General Topics
Topic: Crazyhouse castling rules
Replies: 8
Views: 218

Re: Crazyhouse castling rules

The way I understood the Crazyhouse rules is that the Pawn has a location-dependent move (so it can always do a double-push from 2nd rank, no matter how it got there), while castling rights depend on history. Obviously returning a Rook to a1 through a board move should destroy its castling rights; i...