Search found 10355 matches

by Dann Corbit
Sun Apr 18, 2021 3:26 pm
Forum: Computer Chess Club: General Topics
Topic: Introducing Igel chess engine
Replies: 184
Views: 40982

Re: Introducing Igel chess engine

Hello Dann, This is what I see when I run make: $ make g++ -Wall -std=c++17 -mpopcnt -pthread -static -msse -msse2 -msse3 -msse4.1 -mavx2 -O3 -march=native -flto -DEVALFILE=\"weights/ign-1-139b702b\" *.cpp nnue/*.cpp nnue/features/*.cpp fathom/tbprobe.c -DNDEBUG -DEVAL_NNUE=1 -D_BTYPE=0 -DSYZYGY_SU...
by Dann Corbit
Sun Apr 18, 2021 2:48 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Nalimov errors
Replies: 4
Views: 270

Re: Nalimov errors

It does seem worrying that they MD5 hashes for the same file are different.
I suspect it is default sizes for structs, perhaps a different packing rule.
Modern compilers tend to pack on wider block sizes.
Are the files that you built larger?
by Dann Corbit
Sun Apr 18, 2021 2:42 am
Forum: Computer Chess Club: General Topics
Topic: Introducing Igel chess engine
Replies: 184
Views: 40982

Re: Introducing Igel chess engine

For some reason, I cannot build your engine properly. I used cmake to create visual studio projects and it built something, but it did not find the nodes file and the uci form for arena is blank. It still plays chess, so I guess it is using the ordinary evaluation. I tried using mingw and it found t...
by Dann Corbit
Sun Apr 18, 2021 2:33 am
Forum: Computer Chess Club: General Topics
Topic: Dann Corbit, where can I download your Opening Book ?
Replies: 8
Views: 278

Re: Dann Corbit, where can I download your Opening Book ?

I do not see any reason not to use 7 man EGTB files. In fact, if 8 man files were available, I would prefer if they use those.
There is no reason to fumble in the dark, when you have a lantern, and so does everyone else.
by Dann Corbit
Sun Apr 18, 2021 12:13 am
Forum: Computer Chess Club: General Topics
Topic: Dann Corbit, where can I download your Opening Book ?
Replies: 8
Views: 278

Re: Dann Corbit, where can I download your Opening Book ?

I think we can measure several different things. We can measure engine strength . The most important thing here is symmetry. In other words, if Engine 1 plays opening X as white, then Engine 2 should also play opening X as white. If the engines exit the book in different openings or at different poi...
by Dann Corbit
Sat Apr 17, 2021 9:25 pm
Forum: Computer Chess Club: General Topics
Topic: Dann Corbit, where can I download your Opening Book ?
Replies: 8
Views: 278

Re: Dann Corbit, where can I download your Opening Book ?

This contest is probably a much stronger measure of book performance, because the programs are all the same, to the only variable that changes is the opening book:
https://sites.google.com/site/computers ... book-cs-52
by Dann Corbit
Sat Apr 17, 2021 9:22 pm
Forum: Computer Chess Club: General Topics
Topic: Dann Corbit, where can I download your Opening Book ?
Replies: 8
Views: 278

Re: Dann Corbit, where can I download your Opening Book ?

The new opening books were revolutionized starting with the Cerebellum book.
From that point forward, opening books became enormously strong, giving about 50 Elo to the top engines.

Here is Sedat's current contest:
https://sites.google.com/site/computers ... book-cs-53
by Dann Corbit
Sat Apr 17, 2021 9:16 pm
Forum: Computer Chess Club: General Topics
Topic: DDR5 RAM is coming in 2021
Replies: 11
Views: 507

Re: DDR5 RAM is coming in 2021

Haha, everytime AMD doubles their core count I hear the champagne corks popping here. ;) -- Srdja I crack my knuckles and jump for joy when a new AMD super server comes out. My 3970x saves me a boatload of money when I am analyzing, I almost never run my old server room servers around the clock lik...
by Dann Corbit
Sat Apr 17, 2021 9:09 pm
Forum: Computer Chess Club: General Topics
Topic: Dann Corbit, where can I download your Opening Book ?
Replies: 8
Views: 278

Re: Dann Corbit, where can I download your Opening Book ?

I will see if I can find it. If you want the best books, technology has come a very long way and the books from Sedat's contests are pretty well guaranteed to be stronger. Any top ten book from one of Sedat's book contests will beat a book written twenty years ago that was derived from super GM and ...
by Dann Corbit
Sat Apr 17, 2021 9:05 pm
Forum: Computer Chess Club: General Topics
Topic: ShashChess 16 on Mac M1
Replies: 5
Views: 188

Re: ShashChess 16 on Mac M1

I also think you should be able to use the experience file I created. You should give it a try.