Search found 492 matches

by Joost Buijs
Fri Sep 26, 2025 19:26
Forum: Draughts, Computer, Internet
Topic: DGT Board software
Replies: 2
Views: 15859

Re: DGT Board software

Hi Sidiki,

Somebody told me you have to look at this link:

https://www.youtube.com/watch?v=s-Vx-uFNddk&t=201s

It's a description about configuring and using the software for the DGT checkers-board.

To me it seems all a bit archaic, it needs Java too, I hope you can get it to work.

Joost
by Joost Buijs
Tue Sep 23, 2025 07:49
Forum: Draughts, Computer, Internet
Topic: Perft
Replies: 267
Views: 241575

Re: Perft

This is the result of the laptop with AMD AI-9-HX370 12 core processor which has a base-clock of 2 GHz. and a boost-clock of 5.1 GHz.


Ares-AI-v2.x welcomes you!

initializing:
zobrist numbers: 1C0C5121 ok
magic tables: 1D990E8A ok

b b b b b
b b b b b
b b b b b
b b b b b ...
by Joost Buijs
Sun Sep 21, 2025 17:33
Forum: Draughts, Computer, Internet
Topic: Perft
Replies: 267
Views: 241575

Re: Perft


There are rumors that the ZEN 6 will have a boost clock above 6 GHz, so also this record will not be for eternity.


I agree, in the future there will still be some improvement in clock-speed and the size of processor caches. Maybe (when I'm lucky) AMD will retain the current processor-socket for ...
by Joost Buijs
Sun Sep 21, 2025 15:59
Forum: Draughts, Computer, Internet
Topic: Perft
Replies: 267
Views: 241575

Re: Perft


My newest PC is a laptop with an I7-12700H CPU. Base clock is 2.4 GHz, but it gets up to about 4.5 GHz with turbo boost.

perft(1) 9 nodes, 0.00 sec, 9 knodes/sec
perft(2) 81 nodes, 0.00 sec, 81 knodes/sec
perft(3) 658 nodes, 0.00 sec, 658 knodes/sec
perft(4) 4265 nodes, 0.00 sec, 4265 knodes/sec ...
by Joost Buijs
Sun Sep 21, 2025 14:45
Forum: Draughts, Computer, Internet
Topic: Perft
Replies: 267
Views: 241575

Re: Perft

That's about 20 times faster.

I don't think that processors got 20 times faster the last 17 years, it's a combination of many things, faster memory, wider buses and better compilers to name a few.

With a move-generator/move-do/undo optimized for perft() it could even be faster, Ares uses the same ...
by Joost Buijs
Sun Sep 21, 2025 07:59
Forum: Draughts, Computer, Internet
Topic: Perft
Replies: 267
Views: 241575

Re: Perft

On my new PC with AMD Zen5 Threadripper single threaded perft() does pretty good too:


Ares-AI-v2.x welcomes you!

initializing:
zobrist numbers: 1C0C5121 ok
magic tables: 1D990E8A ok

b b b b b
b b b b b
b b b b b
b b b b b
. . . . .
. . . . .
w w w w w
w w w w w
w w w w w
w w w w w ...
by Joost Buijs
Fri Sep 05, 2025 05:32
Forum: Draughts, Computer, Internet
Topic: Challenge
Replies: 8
Views: 26372

Re: Challenge

I have the impression that it might be winning for black, but it ain't easy, it needs at least another 30 moves.
To really find out will take many hours of analysis with the help of a program.
by Joost Buijs
Thu Sep 04, 2025 05:34
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

If you don't like using the command-line there is a small utility called File Joiner, which is very neat, I often use it.

https://www.igorware.com/file-joiner
by Joost Buijs
Wed Sep 03, 2025 16:51
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

Sidiki,

Thanks again for organizing and running this tournament!

Congratulations to Gijsbert and Frank with the very big improvement of GWD and Tornado.

As said before, one needs a bit of luck to win a tournament with several contenders of approximately the same strength. It often depends upon ...
by Joost Buijs
Mon Sep 01, 2025 16:02
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

Hi Sidiki,

I can imagine that you are tired after running 2 complete rounds each day for almost 2 weeks in a row. For what it's worth, I appreciate it very much that you took the time to have these programs play against each other.

Although Ares didn't change much (it only has an entirely ...
by Joost Buijs
Sat Aug 30, 2025 18:54
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

I wonder, do you play these games during the night?
by Joost Buijs
Wed Aug 27, 2025 17:13
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

The (excessively) high number of draws is indeed a major problem in International Draughts.

First of all, it makes Machine Learning (ML) above a certain level virtually impossible, because a program that only plays draws doesn't learn anything new.

Secondly, it makes tournaments less interesting ...
by Joost Buijs
Sat Aug 23, 2025 07:02
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

Sidiki wrote: Fri Aug 22, 2025 22:34 About 95 to 110
Hi Sidiki,

Thank you, that's interesting.

Joost
by Joost Buijs
Fri Aug 22, 2025 19:40
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

Hi Sidiki,

Thanks for your hard work, you deserve to take some rest.

I'm comparing different types of hardware, can you tell me how many nodes per second Ares does at the beginning of the game on the i9-12900K (assuming it uses 16 threads)? Just interested.

Joost
by Joost Buijs
Wed Aug 20, 2025 19:42
Forum: Draughts, Computer, Internet
Topic: AUGUST 2025 BLITZ TOURNAMENT
Replies: 55
Views: 33940

Re: AUGUST 2025 BLITZ TOURNAMENT

Hi Sidiki,

It's nice that you want to enter all these games by hand, and I don't want to bother you, but it mysteriously seems to be broken again.

Joost