Search found 1847 matches

by mwyoung
Thu Mar 05, 2020 9:57 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Live Fat Fritz 1.1 vs Stockfish 040320
Replies: 1
Views: 594

Live Fat Fritz 1.1 vs Stockfish 040320

Fat Fritz 1.1 vs Stockfish 040320

Hardware 2950x , RTX 2080 ti
Opening book to 8 moves

Fat Fritz 1.1 Default

Stockfish 040320 Default
Threads = 32
Hash = 4 GB

Live Stream: https://www.youtube.com/watch?v=RffvjxgTaSw
by mwyoung
Wed Feb 26, 2020 1:26 am
Forum: Computer Chess Club: General Topics
Topic: Repeating games with switched colors reduces Elo error. All matches should be done like this
Replies: 40
Views: 4947

Re: Repeating games with switched colors reduces Elo error. All matches should be done like this

This only applies to tests with the same opening book for both sides. It makes intuitive sense that the results will be more accurate if player A and player B play both sides of all openings. But I couldn't find any empirical results so I wrote a utility to test it out myself. First, I've compared ...
by mwyoung
Tue Feb 25, 2020 11:18 pm
Forum: Computer Chess Club: General Topics
Topic: Repeating games with switched colors reduces Elo error. All matches should be done like this
Replies: 40
Views: 4947

Re: Repeating games with switched colors reduces Elo error. All matches should be done like this

I disagree. Why isn't the performance of 1.g4 or 1.f3 tested for the engine? It's a subset where most engines underperform so we prune those variations as bad. If an engine really underperforms in some variation of the Semi-Slav, then forcing this engine to play it makes as much sense as making it ...
by mwyoung
Tue Feb 25, 2020 10:55 pm
Forum: Computer Chess Club: General Topics
Topic: a killer was born last night.
Replies: 26
Views: 2739

Re: a killer was born last night.

Ovyron wrote:
Tue Feb 25, 2020 10:52 pm
mwyoung wrote:
Tue Feb 25, 2020 10:24 pm
How bad can it be
Making me waste 15 minutes of my life checking and RC that doesn't work. I'd rather not risk those minutes.
That is why I am here. I do this for you.

RC 0.24.0
https://www.youtube.com/watch?v=zj6vlKkgi7w
by mwyoung
Tue Feb 25, 2020 10:51 pm
Forum: Computer Chess Club: General Topics
Topic: Repeating games with switched colors reduces Elo error. All matches should be done like this
Replies: 40
Views: 4947

Re: Repeating games with switched colors reduces Elo error. All matches should be done like this

When an engine is rated, it should not be rated over a tiny subset of chess positions it likes and can go in if using an opening book meant to exclude most of the lines it does worse in. I disagree. Why isn't the performance of 1.g4 or 1.f3 tested for the engine? It's a subset where most engines un...
by mwyoung
Tue Feb 25, 2020 10:24 pm
Forum: Computer Chess Club: General Topics
Topic: a killer was born last night.
Replies: 26
Views: 2739

Re: a killer was born last night.

Thanks mwyoung. Yeah, I've had really bad experienced with Release Candidate versions in the past, to the point of regretting not waiting for the final release. If there's something broken in the RC that makes me waste time fixing it only to see the final release had no problems that'd be the same ...
by mwyoung
Tue Feb 25, 2020 10:23 pm
Forum: Computer Chess Club: General Topics
Topic: a killer was born last night.
Replies: 26
Views: 2739

Re: a killer was born last night.

Thanks mwyoung. Yeah, I've had really bad experienced with Release Candidate versions in the past, to the point of regretting not waiting for the final release. If there's something broken in the RC that makes me waste time fixing it only to see the final release had no problems that'd be the same ...
by mwyoung
Tue Feb 25, 2020 8:14 pm
Forum: Computer Chess Club: General Topics
Topic: What is the value of logical cores ( HT) for chess ?
Replies: 56
Views: 4145

Re: What is the value of logical cores ( HT) for chess ?

I finished assembly on Jan 25th and it took most of the next week to install software, move data from the old computers and set up my dev environment. Since then I've had it running 32 to 44 threads at 4.1+ghz 24/7. I run with PBO on. Would you mind mentioning the builder? I have friends that are a...
by mwyoung
Tue Feb 25, 2020 8:07 pm
Forum: Computer Chess Club: General Topics
Topic: Repeating games with switched colors reduces Elo error. All matches should be done like this
Replies: 40
Views: 4947

Re: Repeating games with switched colors reduces Elo error. All matches should be done like this

Playing reverse colors cancels out that opening to a draw result. It's not cancelled, it's on there contaminating the results you'd have gotten if a good book line instead was played. Imagine you play Stockfish v Crafty and they draw that opening even though Stockfish could have easily won with a b...
by mwyoung
Tue Feb 25, 2020 8:02 pm
Forum: Computer Chess Club: General Topics
Topic: a killer was born last night.
Replies: 26
Views: 2739

Re: a killer was born last night.

Ovyron wrote:
Tue Feb 25, 2020 6:52 pm
I can't find a release of 24.0, I guess it's still deemed as "unstable"?

https://github.com/LeelaChessZero/lc0/r ... 0.24.0-rc1