Search found 802 matches

by Ed Gilbert
Fri Jan 15, 2021 12:51
Forum: Draughts, Computer, Internet
Topic: NNUE
Replies: 68
Views: 3190

Re: NNUE

Joost, very interesting, thanks for posting this update. Your results with floating point and non-incremental eval are already very good. It wasn't clear to me, are your training positions labeled as WLD, or with an eval score from a quick search? Also, what time controls did you use for the matches...
by Ed Gilbert
Fri Jan 15, 2021 12:18
Forum: Draughts, Computer, Internet
Topic: Draughts equivalent of Sygyzy tablebases?
Replies: 2
Views: 50

Re: Draughts equivalent of Sygyzy tablebases?

The Kingsrow databases are available without restrictions. These include win, loss, draw for 8 pieces max, distance to win for 7 pieces max, and distance to conversion for 8 pieces max. Access source code for Windows and Linux is on GitHub: https://github.com/eygilbert/egdb_intl
by Ed Gilbert
Mon Jan 04, 2021 20:23
Forum: Draughts, Computer, Internet
Topic: Flits 3.1
Replies: 4
Views: 170

Re: Flits 3.1

He has a question about the program Flits 3.1. Some time ago, Ed and Bert noticed a bug in Flits. It concerned the base of endings in the program. Can someone write how to check whether the error still occurs or not. Thank you in advance for any information. I have been told by someone who knows th...
by Ed Gilbert
Wed Dec 30, 2020 13:25
Forum: Draughts, Computer, Internet
Topic: Left/right imbalance checkers/draughts
Replies: 2
Views: 153

Re: Left/right imbalance checkers/draughts

How does one (typically) implement left/right imbalance ? What first comes to my mind is simply counting the pieces on the left and right side of the board but that seems to be a little too "unprecise". edit: I tried to give a simple explanation, but I got it wrong. For the white men on the left si...
by Ed Gilbert
Thu Nov 26, 2020 13:10
Forum: Draughts, Computer, Internet
Topic: Moby Dam
Replies: 67
Views: 37490

Re: Moby Dam

I set the program to 15 minutes for 75 moves and after 75 moves it doesn't play anymore. You told it that the game would end after 75 moves, so the program behavior after that is not defined by your match rules. The state of the program and how it thinks and moves at that point is left to the discr...
by Ed Gilbert
Sun Nov 01, 2020 18:31
Forum: Draughts, Computer, Internet
Topic: Online Computer Olympiad 2020
Replies: 5
Views: 912

Re: Online Computer Olympiad 2020

Ed whether this Olympics happened or not.
It is not scheduled to start until the end of November.
23 november : last day registration
by Ed Gilbert
Sat Oct 31, 2020 14:05
Forum: Draughts, Computer, Internet
Topic: Online Computer Olympiad 2020
Replies: 5
Views: 912

Re: Online Computer Olympiad 2020

The Olympiad announcement might give the impression that you have to programmatically interface your engine to the Ludii system, but that is not necessary. You only need to run the Ludii GUI and use it to login to the Ludii game server. After you create a game on the server and your opponent joins t...
by Ed Gilbert
Mon Oct 26, 2020 17:03
Forum: Draughts, Computer, Internet
Topic: Rapid or blitz
Replies: 3
Views: 333

Re: Rapid or blitz

I now see that the FMJD does have definitions for these terms, and game time 15 min per player is included in both categories. http://www.fmjd.org/?p=annex. I think you can use either one.
by Ed Gilbert
Mon Oct 26, 2020 14:23
Forum: Draughts, Computer, Internet
Topic: Rapid or blitz
Replies: 3
Views: 333

Re: Rapid or blitz

https://en.wikipedia.org/wiki/Fast_chess. In chess, 15 minutes per player is rapid. I'm not aware of any different definitions for draughts.
by Ed Gilbert
Wed Oct 14, 2020 14:26
Forum: Draughts, Computer, Internet
Topic: Online Computer Olympiad 2020
Replies: 5
Views: 912

Online Computer Olympiad 2020

I received this from Leo Nagels: As most of you will already know, the Computer Olympiade in Santiago de Compostela in September was cancelled due to Corona measures. I am happy to announce, that about a week ago I was mailed by the ICGA president Jonathan Schaeffer, that there still will be a Compu...
by Ed Gilbert
Thu Jul 09, 2020 16:01
Forum: Draughts, Computer, Internet
Topic: New kingsrow version and DTW database
Replies: 2
Views: 891

New kingsrow version and DTW database

I have released version 1.62 of kingsrow, both hub and UI versions, and a Distance to Win db. When the game position is a win or a loss and in the DTW db, kingsrow will display search results like "white wins in 89 ply". Using it allows kingsrow to play the shortest path to a win. Except for minor U...
by Ed Gilbert
Sat Jun 27, 2020 12:15
Forum: Draughts, Computer, Internet
Topic: Edeon Sport
Replies: 3
Views: 981

Re: Edeon Sport

Can we see some data please? Play a couple of games and record the search scores from Edeon of each move. Post it here.
by Ed Gilbert
Tue May 26, 2020 17:19
Forum: Draughts, Computer, Internet
Topic: Flits self-learning mode
Replies: 83
Views: 10934

Re: Flits self-learning mode

I haven't heard Ed say he approved all this. Bert asked me for the code, I gave it to him without any restrictions. If that upset the balance of draughts competition then I am to blame, not Bert. Sure tournaments are fun, but really Fabien has already won, the strongest engines are using his patter...
by Ed Gilbert
Mon May 25, 2020 23:19
Forum: Draughts, Computer, Internet
Topic: Opening book stats
Replies: 2
Views: 815

Re: Opening book stats

To satisfy some people's curiosity, can you run a test with Flits and the anti-Kingsrow book?
JJ, I have a few other things going on this week so I'm not going to take this on. Anyone with flits can run it though.
by Ed Gilbert
Mon May 25, 2020 19:41
Forum: Draughts, Computer, Internet
Topic: Opening book stats
Replies: 2
Views: 815

Opening book stats

I was curious to know how much the use of an opening book can affect a match result, so I ran some tests. For the first set of tests, I played 2 matches of kingsrow vs scan, one match with books enabled in both engines, and second match with the kingsrow book disabled, but scan's enabled. The kingsr...