Search found 242 matches

by abulmo2
Fri Jan 15, 2021 8:08 am
Forum: Computer Chess Club: General Topics
Topic: New engine releases & news 2021
Replies: 27
Views: 2759

Re: New engine releases & news 2021

Dumb 1.7 https://github.com/abulmo/Dumb/ Is anyone able to make a Windows compile for this ? The link above only has Linux. I'd be running it on an AMD FX8350, which has popcnt and SSE4.2 and SSE4a support, but not AVX2 or BMI2. Thanks. Sorry, I forgot to upload the windows binaries. You can now fi...
by abulmo2
Thu Jan 14, 2021 12:46 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Perft for capturing move gen
Replies: 2
Views: 95

Re: Perft for capturing move gen

abulmo2 wrote:
Thu Jan 14, 2021 12:41 pm
You can try my perft available here: https://github.com/abulmo/MPerft
It does have an option to generate only captures, promotions and check evasions.
An old discussion about 'qs' perft numbers done on the Kiwipete position:
http://talkchess.com/forum3/viewtopic.php?f=7&t=70808
by abulmo2
Thu Jan 14, 2021 12:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Perft for capturing move gen
Replies: 2
Views: 95

Re: Perft for capturing move gen

You can try my perft available here: https://github.com/abulmo/MPerft
It does have an option to generate only captures, promotions and check evasions.
by abulmo2
Sun Jan 03, 2021 9:57 am
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 598
Views: 164430

Re: New engine releases 2020

Dumb 1.6 : https://github.com/abulmo/Dumb/releases/tag/1.6 The zip file for the Windows compiles contains two files, supposedly 32 and 64 bits, but the compiles are identical 64 bit compiles. Sorry, I did not know there was still some 32-bits Windows in the wild :) . I have uploaded a new zip file ...
by abulmo2
Sat Jan 02, 2021 10:19 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 598
Views: 164430

Re: New engine releases 2020

Have fun with it. Hello! For your information, I cannot use the Linux binary of Dumb 1.6. [roland@localhost 16]$ ./dumb-1.6 ./dumb-1.6: /lib64/libc.so.6: version `GLIBC_2.32' not found (required by ./dumb-1.6) [roland@localhost 16]$ It seems that I have to compile the source. I search how I can ins...
by abulmo2
Sat Jan 02, 2021 6:42 pm
Forum: Computer Chess Club: General Topics
Topic: New engine releases 2020
Replies: 598
Views: 164430

Re: New engine releases 2020

Dumb 1.6 : https://github.com/abulmo/Dumb/releases/tag/1.6 The zip file for the Windows compiles contains two files, supposedly 32 and 64 bits, but the compiles are identical 64 bit compiles. Sorry, I did not know there was still some 32-bits Windows in the wild :) . I have uploaded a new zip file ...
by abulmo2
Sat Dec 26, 2020 5:35 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Are Aspiration Windows Worthless?
Replies: 40
Views: 2633

Re: Are Aspiration Windows Worthless?

I just run some experimentations that strongly disagree with your findings. The aspiration windows algorithm is definitely worth on my engines. I got the following results, with self play using SPRT stop condition: - Dumb : +54.2 +/- 7.3 Elo (834 games) - Amoeba : +131.6 +/- 12.2 Elo (260 games) Be...
by abulmo2
Fri Dec 25, 2020 3:20 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Delimiter development diary
Replies: 49
Views: 3335

Re: Delimiter development diary

D programmers don't have enough chess engines to work from. I figured having a simple base will make it easier for others to create their engines. I agree there are not many chess engines in D, but I have written two of them: https://github.com/abulmo/amoeba https://github.com/abulmo/Dumb Dumb is a...
by abulmo2
Fri Dec 25, 2020 12:43 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Are Aspiration Windows Worthless?
Replies: 40
Views: 2633

Re: Are Aspiration Windows Worthless?

I just run some experimentations that strongly disagree with your findings. The aspiration windows algorithm is definitely worth on my engines. I got the following results, with self play using SPRT stop condition: - Dumb : +54.2 +/- 7.3 Elo (834 games) - Amoeba : +131.6 +/- 12.2 Elo (260 games) Bec...
by abulmo2
Mon Dec 14, 2020 7:54 am
Forum: Computer Chess Club: General Topics
Topic: what is the longest tablebase mate with special properties?
Replies: 16
Views: 1694

Re: what is the longest tablebase mate with special properties?

r6R/k7/p2K4/P7/8/8/7P/8 w - - 0 1 This is mate in 9, with a single path: 1.Rxa8+ Kxa8 2. Kc7 Ka7 3. h3! Ka8 4. h4 Ka7 5. h5 Ka8 6. h6 Ka7 7. h7 Ka8 8. h8=Q+ Ka7 9. Qb8# (1... Kb7 allows mate in 6, so the complexity is only 1.) Strictly, though, the tablebases don't show at the start that 1.Rxa8+ is...