Search found 587 matches

by petero2
Sun Apr 28, 2019 10:52 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Re-Pair compression questions
Replies: 11
Views: 3422

Re: Re-Pair compression questions

For the complicated cases, such as KRNPvKQ which is the largest 6 man WDL table, the decision tree is a lot less efficient at reducing the compressed size. The KRNPvKQ table is reduced by around 30% by the decision tree prediction. Other "complicated" tables are reduced by around 30% to 50%. Do you...
by petero2
Sun Apr 21, 2019 9:03 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Re-Pair compression questions
Replies: 11
Views: 3422

Re: Re-Pair compression questions

I think it's worth to try using ANS with probabilities delivered by convolutional neural network fed with position. I tnink well-trained CNN is able to deliver almost exact evaluation which could dramatically reduce memory usage... How are you going to run an NN on all the positions in a 7-piece ta...
by petero2
Sun Mar 03, 2019 10:04 pm
Forum: Computer Chess Club: General Topics
Topic: Artificial intelligence 2019
Replies: 25
Views: 3473

Re: Please Help for fix motion in all games across movements.

Unfortunatelly I dont know how to put motions in al these games or examples here into the post. Here are the games surrounded by pgn tags to make them viewable directly in the web browser. [Event "Rated game, 5 min"] [Site "Engine Room"] [Date "2019.03.02"] [Round "?"] [White "iSoulTraiN"] [Black "...
by petero2
Sun Feb 10, 2019 9:57 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: unit testing polyglot probe code....
Replies: 7
Views: 1447

Re: unit testing polyglot probe code....

I'm using perfect2017.bin as opening book. do you know some opening lines containing promotion in the early phases? do you know some opening lines containing en passant moves in the early phases? It is possible to find out by starting from the initial position and following all moves found in the b...
by petero2
Fri Feb 08, 2019 5:44 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish Cluster MPI
Replies: 16
Views: 3688

Re: Stockfish Cluster MPI

I would like to test the stockfish cluster version. https://github.com/official-stockfish/Stockfish/tree/cluster Can someone provide an .exe file? I have uploaded stockfish_cluster_win64.7z to this public dropbox folder: https://www.dropbox.com/sh/v16dye7ww33x7oe/AAAXmGY0phMkB7XlR-vaOxasa/test Stoc...
by petero2
Mon Dec 03, 2018 8:07 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: check extension
Replies: 12
Views: 2399

Re: check extension

Demolito extends checks, whose SEE >= 0. In practice, I've never seen search explosions as a result, but I wonder… Is it possible to have long sequences of checks, which involve no position repetition, and no SEE losing moves? If the checks can also be captures, it is possible to construct a positi...
by petero2
Sun Oct 28, 2018 9:30 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Technical reason why probing N-men syzygy will also probe N-1 men?
Replies: 2
Views: 869

Re: Technical reason why probing N-men syzygy will also probe N-1 men?

In a recent thread I asked why, and got the answer that Ronald, author of the Syzygy endgame tablebases, gave this explanation : The N-1-men will be probed while the N-men are getting probed because of how the compression scheme works. Does anyone know the technical details about it? It is explaine...
by petero2
Sun Jun 24, 2018 9:51 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney June
Replies: 18
Views: 4113

Re: On-line engine blitz tourney June

Leela (LC0-20180622 with network 395) did surpricingly well, it was running on my old i7-5960x with GTX-1080ti. I've been watching most of the games, although Leela is tactically very weak it was able to positionally outmaneuver most other engines, only Texel with his (100 core ???) cluster was a l...
by petero2
Wed May 23, 2018 7:23 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: DTM50
Replies: 65
Views: 14661

Re: DTM50

Here is my suggestion: Store the DTM(100) table as "usual". Store all DTM(x) tables for x<100 in a single file, in an "interleaved" format. That is, the value for position i in the DTM(x) table is stored at position: i * 99 + (99 - x) in the file. Instead of storing the actual value, you store the d...
by petero2
Mon Apr 30, 2018 3:23 am
Forum: Computer Chess Club: General Topics
Topic: chess22k 1.9 released
Replies: 17
Views: 3365

Re: chess22k 1.9 released

Graham Banks wrote:
Damir wrote:Hi Graham

You must install Java on your machine. :) :)
Java is installed, but I see no jar file in the engine folder.
Maybe this link helps.