Search found 19 matches

by jack512
Sat Apr 28, 2018 7:47 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Search-based opening book
Replies: 17
Views: 5001

Re: Search-based opening book

No, I wasn't. Thank you for the link! I'm using a derivative of the drop-out expansion scheme for my book (plus several other forms of expansion). It's standard practice in checkers to use drop-out expansion (DOE) for opening book preparation. Apart from the much smaller branching factor for checke...
by jack512
Mon Feb 26, 2018 7:45 pm
Forum: Computer Chess Club: General Topics
Topic: Is there a program to build opening books based on engines?
Replies: 29
Views: 5278

Re: Is there a program to build opening books based on engin

Take a look the below paper. IMO it has some limitations and there are some questions for that paper but it may be a good starting point: https://drive.google.com/file/d/0B2pvWWlf39g-NWN0OUpkRE0tem8/view Here is a more recent version of this manuscript: https://drive.google.com/open?id=1FBy-tKExG7C...
by jack512
Tue Dec 12, 2017 11:21 pm
Forum: Computer Chess Club: General Topics
Topic: AlphaZero beats AlphaGo Zero, Stockfish, and Elmo
Replies: 198
Views: 48707

Re: AlphaZero beats AlphaGo Zero, Stockfish, and Elmo

Mr. Kaufman, in the chess.com article on AlphaZero, you were quoted as saying "...AlphaZero had effectively built its own opening book...". Could you elaborate on that statement? Did it build its opening book in the sense that it stored moves in a lookup table for opening positions? Or did its train...
by jack512
Sat Apr 29, 2017 3:42 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Search-Based Opening Book Construction
Replies: 10
Views: 2354

Search-Based Opening Book Construction

Search-Based Opening Book Construction Abstract – An algorithm is described for constructing a chess opening book, to be used in play against an opponent using another book that is given. The book under construction is represented as a Directed Acyclic Graph, with chess positions as nodes and moves ...
by jack512
Fri Mar 10, 2017 3:46 am
Forum: Computer Chess Club: General Topics
Topic: how to convert match score to ELO difference
Replies: 3
Views: 1039

how to convert match score to ELO difference

Can somebody point me to a reference showing how to convert match scores into ELO differences? E.g. if A and B play a thousand games, and A's win-loss-draw is 250-200-550, what ELO difference between A and B does that indicate?
by jack512
Thu Dec 15, 2016 2:57 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Search-Based Opening Book Construction
Replies: 22
Views: 3315

Re: Search-Based Opening Book Construction

1. How do you change the tree into a DAG? First of all, one general thing to keep in mind is that space and time efficiency are very much secondary considerations in my data structures and algorithms. My DAG and Priority Queue and Binary Tree manipulations and Given Book lookups are only done in bet...
by jack512
Wed Dec 14, 2016 9:27 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Search-Based Opening Book Construction
Replies: 22
Views: 3315

Search-Based Opening Book Construction

Search-Based Opening Book Construction Abstract - A procedure is given to construct a chess opening book (OB) to be played against another, given OB. OBs for White and Black are constructed separately. The chess positions of the OB being constructed are represented as nodes in a Directed Acyclic Gr...
by jack512
Thu Sep 08, 2016 2:39 am
Forum: Computer Chess Club: General Topics
Topic: crafty 25.0.1 book.bin & books.bin
Replies: 5
Views: 1019

crafty 25.0.1 book.bin & books.bin

Whilst the official Crafty website is unavailable, could somebody point me to a copy of the book.bin and books.bin that comes with version 25.0.1? Thx.
by jack512
Tue Aug 30, 2016 6:10 pm
Forum: Computer Chess Club: General Topics
Topic: Need Program For Comparing Hacked vs. Official Crafty
Replies: 8
Views: 1919

Re: Need Program For Comparing Hacked vs. Official Crafty

In the xboard I downloaded to Ubuntu Linux, the manpage says -inc disables -mps:

"-inc or -timeIncrement seconds. If this option is specified, `movesPerSession' is ignored. Instead, after each player's move, `timeIncrement' seconds are added to his clock."

I will try -tc 0:10 -inc 0.3
by jack512
Mon Aug 08, 2016 6:53 pm
Forum: Computer Chess Club: General Topics
Topic: Need Program For Comparing Hacked vs. Official Crafty
Replies: 8
Views: 1919

Re: Need Program For Comparing Hacked vs. Official Crafty

oops I meant "time 30/90/sd/60" (30 moves in 90 minutes then 60 minutes for rest of game)