Search found 2102 matches

by Rebel
Sat Oct 20, 2018 6:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Sonu 1.0
Replies: 0
Views: 76

Sonu 1.0

After SOMU -- (S)ome (O)f (M)y (U)tils -- there is now SONU -- (S)ome (O)f (N)orm's (U)tils -- a selection of 9 PGN utilities from Norman Pollack made more comfortable in use.

http://rebel13.nl/download/utilities.html#somu
http://rebel13.nl/download/utilities.html#sonu
by Rebel
Sun Oct 14, 2018 3:20 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 3 million games for training neural networks
Replies: 26
Views: 4452

Re: 3 million games for training neural networks

Here's the link: https://drive.google.com/drive/folders/1JBWlyXhm6ecp43Z2wu4bhFitamyJD5_k Enjoy! Donwloaded them. Thanks. Can you tell me the purpose producing 3 miilion games from only 5953 unique opening lines of which 21% are exact doubles? Nevertheless, thanks to all the doubles, it was expecte...
by Rebel
Sat Aug 18, 2018 7:49 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

You could also not put it more wrong... There are changes through which you paint yourself into a corner, which initially help a bit, and after that enormously hamper further progress. Nobody denied that hiding a bug can give better play. The argument on the table is that fixing it would be even be...
by Rebel
Sat Aug 18, 2018 4:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

hgm wrote:
Sat Aug 18, 2018 2:35 pm
Apparently the symptom is wasting tempos by multiple moving of the Queen.
If a whatever engine change produces elo then that is a good change for that particular engine.

I can not put it more simple.
by Rebel
Sat Aug 18, 2018 12:02 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

The point is that eng-eng matches cannot tell you what the problem is, but only tell you whether a randomly picked eval term ameliorates the situation a bit. The chances that a term, no matter how non-sensical, has no effect at all are pretty slim, so you can always tune its weight to give some imp...
by Rebel
Fri Aug 17, 2018 6:19 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

hgm wrote:
Fri Aug 17, 2018 9:10 am
What job? Patching one error with another?
What ?!

Maybe that's your expertise, not mine :D
by Rebel
Fri Aug 17, 2018 8:26 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

OK, so this is equivalent to a consistent stm bonus of 2 cP, plus a kludgy way to discourage moving Q and K. I must admit I have a move penalty for Kings too in microMax (20 cP even), as a cheap kludge for King safety: because of it it tries to protect its King from checks that would force teh King...
by Rebel
Thu Aug 16, 2018 10:14 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

I guess everybody has some sort of code dealing with the tempo penalty in eval. Basically I subtract 0.04 for pawn, knight, bishop and rook moves and 0.06 for queen and king moves in the middle game and no penalty at all in the endgame. I don't get this. Eval scores positions, not moves. do you mea...
by Rebel
Thu Aug 16, 2018 6:43 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

Re: On Tempo

score -= (score-material) * 0.05 If that works out, it just means that the positional scoring is overdone by 5%. It has nothing to do with tempo. If that is true it would mean 2 things: #1. Decreasing every eval ingrediënt with 5% should give the same improvement, I somehow doubt that. #2. That eve...
by Rebel
Wed Aug 15, 2018 4:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On Tempo
Replies: 26
Views: 2397

On Tempo

I guess everybody has some sort of code dealing with the tempo penalty in eval. Basically I subtract 0.04 for pawn, knight, bishop and rook moves and 0.06 for queen and king moves in the middle game and no penalty at all in the endgame. I don't know why this difference between the mid and end game, ...