Search found 18 matches

by JayRod
Fri Aug 30, 2019 5:44 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Dedicated Chess Machine Elo vs Human Elo, a least squares analysis
Replies: 11
Views: 1882

Re: Dedicated Chess Machine Elo vs Human Elo, a least squares analysis

I suggest that you face engines of approximately 1600 Elo CCRL points and see if you can win them by complying with time control. If the engine plays in 15 seconds and you respond in 2 minutes, you are using 8 times more time, this could mean by your rule of 75 points; 75 + 75 + 75 = 225 points mor...
by JayRod
Tue Aug 27, 2019 10:40 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Dedicated Chess Machine Elo vs Human Elo, a least squares analysis
Replies: 11
Views: 1882

Re: Dedicated Chess Machine Elo vs Human Elo, a least squares analysis

\ And finally if you know the Elo FIDE, if you want with Kai's formula you could go to Elo CCRL (To Kai's formula I would make a modification for Elo FIDE less than 1400) CCRL FIDE USCF AKTIV 2000 2240 2305 2237 1900 2170 2233 2165 The experience I have of visiting some dedicated machine forums is ...
by JayRod
Fri Aug 23, 2019 9:35 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Dedicated Chess Machine Elo vs Human Elo, a least squares analysis
Replies: 11
Views: 1882

Dedicated Chess Machine Elo vs Human Elo, a least squares analysis

Inspired by something said by GM Kaufman here: http://www.talkchess.com/forum3/viewtopic.php?t=59332&start=30 I went ahead and found some data and below is the correlation between dedicated chess machine Elo (SSDF) and human Elos, the human pool was apparently from 1987-1991 in Europe. Data below, s...
by JayRod
Wed Dec 10, 2014 6:43 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: How can a program beat itself? Where is the randomness?
Replies: 16
Views: 2713

Re: How can a program beat itself? Where is the randomness?

I propose that you try to find the explanation for a different scenario first: two identical engine instances play each other with identical time control. Of course we expect a result of 50% with a sufficient number of games. But will all games end in a draw? No, they won't. Instance A will win som...
by JayRod
Sun Dec 07, 2014 8:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: How can a program beat itself? Where is the randomness?
Replies: 16
Views: 2713

Re: How can a program beat itself? Where is the randomness?

There is generally no explicit randomness in the search. There's semi-random effects caused by timing, particularly in the case of an SMP search where some nodes might get searched under one timing and not under another due to threads getting preempted by the system at different points resulting in...
by JayRod
Sun Dec 07, 2014 9:33 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: How can a program beat itself? Where is the randomness?
Replies: 16
Views: 2713

Re: How can a program beat itself? Where is the randomness?

@Dr. Hyatt, CRoberson Thank you. If you can summarize where the Horizon Effect occurs, at a blitz level program, in a few sentences without this thread becoming a long tutorial on how chess programs work, that would be appreciated. I was under the impression that two programs that have identical sou...
by JayRod
Sat Dec 06, 2014 8:39 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: How can a program beat itself? Where is the randomness?
Replies: 16
Views: 2713

How can a program beat itself? Where is the randomness?

I set two identical engines to play each other, one set to 50% strength in Arena ("The engine gets a lower amount of time. The engine thinks it is playing under a lower time control with less time to make a move. With a strength of 50% Arena pretends to the engine, it is running with half the time o...
by JayRod
Sat Dec 06, 2014 8:31 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess Engine by the World's Greatest Programmer
Replies: 14
Views: 4221

Re: Chess Engine by the World's Greatest Programmer

Hmmm....genius and madness? (and Magnus!) go hand in hand? Reminds me of: http://en.wikipedia.org/wiki/Hans_Reiser

JayRod
by JayRod
Wed Sep 03, 2014 2:30 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Elo differences on 40/40 vs 40/4 CCRL lists? Human play?
Replies: 7
Views: 1358

Re: Elo differences on 40/40 vs 40/4 CCRL lists? Human play?

OK thanks Uri Blass, I was mistaken about the flip-flop, and indeed it seems that the strong programs are optimized for bullet, which as you say mostly carries over into improvements at longer time. JayRod Actually I found a program that flip-flops, where the longer time control at 40/40 produces a...
by JayRod
Wed Sep 03, 2014 11:27 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Elo differences on 40/40 vs 40/4 CCRL lists? Human play?
Replies: 7
Views: 1358

Re: Elo differences on 40/40 vs 40/4 CCRL lists? Human play?

OK thanks Uri Blass, I was mistaken about the flip-flop, and indeed it seems that the strong programs are optimized for bullet, which as you say mostly carries over into improvements at longer time.

JayRod