Search found 37 matches

by megamau
Sat Oct 01, 2016 3:13 pm
Forum: Computer Chess Club: General Topics
Topic: Perfect play
Replies: 37
Views: 6376

Re: Perfect play

Thanks to Norm Pollock utilities I managed to better filter the data.
Now I have the draw rate of all engines when facing opposition within 20 elo.

The results are similar, although the linear extrapolation is a bit nearer, at 4400 elo.

Image
by megamau
Wed Sep 28, 2016 2:04 pm
Forum: Computer Chess Club: General Topics
Topic: Perfect play
Replies: 37
Views: 6376

Re: Perfect play

Some replies. Use the tool "eloGap" in 40H-PGN tools Norm, I can't seem to access your site from Singapore. Is there a mirror or could you send by email ? 100% draws does not necessarily mean perfect play. It only means that the difference of the imperfections is not large enough to push closely mat...
by megamau
Wed Sep 28, 2016 4:36 am
Forum: Computer Chess Club: General Topics
Topic: Perfect play
Replies: 37
Views: 6376

Re: Perfect play

Yes, I have done some study on CCRL data, by filtering only programs which have an average opposition within 20 elo of their rating. A better study would be to filter on a game by game basis instead of player by player, but I've had no luck with database programs (CCRL database seems too big for SCI...
by megamau
Thu Mar 24, 2016 3:55 am
Forum: Computer Chess Club: General Topics
Topic: Estimated Elo Perfect Play
Replies: 18
Views: 4684

Estimated Elo Perfect Play

I have done some analysis of the data of CCRL rating list, correlating the draw rate to the strength of the programs. As the ELO increases, so does the draw rate, suggesting the hypothesis that the game is a draw with perfect play. Under the same hypothesis, we can extrapolate the curve of the draw ...
by megamau
Wed Mar 23, 2016 4:03 am
Forum: Computer Chess Club: General Topics
Topic: Animation : Ratings of go players since 1974 !
Replies: 7
Views: 1953

Re: Animation : Ratings of go players since 1974 !

Many people believe that the greatest Go player of all time was Go Seigen. In 3-4 years we will be able to analyze the SGF files of Go Seigen games with engines on smartphones and see his blunders in a matter of seconds. I don't doubt it, but after all "the greatest of all time" does not mean "perf...
by megamau
Tue Mar 22, 2016 4:52 am
Forum: Computer Chess Club: General Topics
Topic: Animation : Ratings of go players since 1974 !
Replies: 7
Views: 1953

Re: Animation : Ratings of go players since 1974 !

He was indeed the greatest Go player of the past 30 years.
However the rating database does not go back enough in time, considering the long history of Go.

Many people believe that the greatest Go player of all time was Go Seigen.
by megamau
Tue Feb 16, 2016 6:51 am
Forum: Computer Chess Club: General Topics
Topic: Go has fallen to computer domination?
Replies: 161
Views: 42519

Re: Go has fallen to computer domination?

Dear Vincent, I have been a lurker on this forum for at least 15 years (Ruffian anyone ?), but I never felt the need to write. However the amount of wrong information that you convey is such, that I needed to reply to this topic. In the meantime it's clear to me what alphago is. Thanks to a posting ...