Search found 201 matches

by Tony P.
Sat Oct 24, 2020 1:02 am
Forum: Computer Chess Club: General Topics
Topic: Complicated position found
Replies: 5
Views: 310

Re: Complicated position found

To add a bit of context, the position itself is interesting, however, it arises from a human opening variation (Two Knights: Fritz, Gruber Variation, 8. Ne4) where both sides blunder :mrgreen: [Event "Computer chess game"] [Site "PC"] [Date "2020.10.24"] [Round "?"] [White "PC"] [Black "PC"] [Result...
by Tony P.
Thu Oct 22, 2020 4:48 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: My test for Ethereal 12.75 x64-pext-avx2_final_release
Replies: 2
Views: 431

Re: My test for Ethereal 12.75 x64-pext-avx2_final_release

Thanks for the test! It will be funny if further testing confirms that Andrew has accidentally written a better or equal search backend for SF nets than SF itself :mrgreen:
by Tony P.
Thu Oct 22, 2020 1:57 am
Forum: Computer Chess Club: General Topics
Topic: Ethereal question ... with or without NNUE is unclear!
Replies: 8
Views: 666

Re: Ethereal question ... with or without NNUE is unclear!

Fwiw, the zip on RWBC is intended for CPUs that support SSE4.1 but don't support popcnt. Guenther made the binary for his hardware and kindly shared it on RWBC, which I'm grateful for because my CPU is exactly such. For CPUs that don't support SSE4.1 or do support popcnt, compile from the Ethereal 1...
by Tony P.
Tue Oct 20, 2020 9:14 pm
Forum: Computer Chess Club: General Topics
Topic: CTF Survey
Replies: 73
Views: 4025

Re: CTF Survey

2. CTF should be closed
by Tony P.
Sat Oct 10, 2020 4:02 am
Forum: Computer Chess Club: General Topics
Topic: Final Release of Ethereal, V12.75
Replies: 126
Views: 7041

Re: Final Release of Ethereal, V12.75

What's ironic is that, after opensourcing Ethereal, you don't own her future exclusively anymore. The TCEC/C3 organizers are free to enroll her derivatives, even (heavily modified) NNUEs, in later seasons against your will.
by Tony P.
Sat Oct 10, 2020 3:53 am
Forum: Computer Chess Club: General Topics
Topic: Final Release of Ethereal, V12.75
Replies: 126
Views: 7041

Re: Final Release of Ethereal, V12.75

Those rating lists will matter more when they start pulling in audiences of comparable size. In the status quo, TCEC is a key avenue for chess programmers' self-promotion. It's too influential to be ignored :D
by Tony P.
Sat Oct 10, 2020 3:17 am
Forum: Computer Chess Club: General Topics
Topic: Final Release of Ethereal, V12.75
Replies: 126
Views: 7041

Re: Final Release of Ethereal, V12.75

So any GPL program can use the NNIUE stuff. Of course, it can, but the SF copyright notice must then be added to the license, and the source must be open*, the exact way in which the SF code is used can't be hidden. There'd be less discussion of that if the TCEC organizers hadn't published special ...
by Tony P.
Sat Oct 10, 2020 2:52 am
Forum: Computer Chess Club: General Topics
Topic: Final Release of Ethereal, V12.75
Replies: 126
Views: 7041

Re: Final Release of Ethereal, V12.75

The shogi programmers are the ones who invented it and attached the code in a branch to the Stockfish Github they made and gifted to the computer chess community. Their decision to add that code to SF and neither add it to another chess engine nor publish code snippets under a less restrictive lice...
by Tony P.
Sat Oct 10, 2020 12:18 am
Forum: Computer Chess Club: General Topics
Topic: Which of the many chess engines in this forum use b strategy ?
Replies: 92
Views: 4618

Re: Which of the many chess engines in this forum use b strategy ?

After 142 moves of shuffling, Leela decided to go all-in and grab the pawn on b4. Then SF walking with a flexible rope was the one to sac the queen. When I wish to run a home chess show, I'll just make a CPU Leela net play bullet vs some NNUE engine of similar strength and watch her blunder 10-move ...
by Tony P.
Fri Oct 09, 2020 11:49 pm
Forum: Computer Chess Club: General Topics
Topic: Final Release of Ethereal, V12.75
Replies: 126
Views: 7041

Re: Final Release of Ethereal, V12.75

Do you mean Terje has cleaned up Weiss, and Fabian cleaned up FabChess, or is Terje now also working on FabChess? The commit history of FabChess shows a few cleanups by Terje. However, when I asked him in the Twitch chat, he said he'd go back to working on Weiss after the finish of the FabChess cle...