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Stockfish Handicap Matches
Posted: Mon Jun 15, 2020 2:52 pm
by Rebel
Stockfish version 11 is elo rated
3534 on the CCRL 40/2 rating list. We play time handicap matches as long as it takes that opponents can beat it. The first match is played at equal time control (40/10) and 1000 games. Thereafter we increase the time control of the opponent with a factor two (40/20) and 800 games. We repeat this process till the opponent finally is able to win or till the maximum of a factor 10 is reached.
http://rebel13.nl/rebel13/stockfish-han ... tches.html
Re: Stockfish Handicap Matches
Posted: Mon Jun 15, 2020 9:31 pm
by Ovyron
I think you could achieve the same data, with much more games, if instead of increasing the time factor of the engine, you decreased the time factor of Stockfish.
Re: Stockfish Handicap Matches
Posted: Mon Jun 15, 2020 9:49 pm
by Alayan
The scaling curves up and down aren't the same.
Re: Stockfish Handicap Matches
Posted: Mon Jun 15, 2020 9:58 pm
by xr_a_y
You'll probably need to go to factor 20 (5%) or even 100 (1%) ... if you want to include all 3000+ engines, depends on your target (in this case, decreasing SF time is easier ...)
Re: Stockfish Handicap Matches
Posted: Tue Jun 16, 2020 12:08 am
by Ovyron
Alayan wrote: ↑Mon Jun 15, 2020 9:49 pm
The scaling curves up and down aren't the same.
Yeah, but what's the difference? Can one curve be mapped into the other?
Like, play a Booot 6.4 v Stockfish 11 match where Boot gets a factor of 1, and Stockfish gets a factor of 1/10, and see how it compares to the Booot 6.4 Factor 10 ones. If you can extrapolate the differences then you can build a curve that tells you how Boot Factor 20 will perform by playing Factor 1 v Stockfish with factor 1/20 in a fraction of the time or allowing you to play twice the games.
Re: Stockfish Handicap Matches
Posted: Sun Jun 21, 2020 12:31 pm
by Rebel
Added a handicap factor of 100, fun with the known names of the past and/or former rating list leaders and world champions.
Progress has been amazing...
http://rebel13.nl/rebel13/stockfish-han ... tches.html
Re: Stockfish Handicap Matches
Posted: Sun Jun 21, 2020 1:40 pm
by chrisw
I guess the thought of giving knight odds against oldie version did already occur to you?
Re: Stockfish Handicap Matches
Posted: Sun Jun 21, 2020 1:53 pm
by yurikvelo
What is definition of "able to win"?
Win match or a single game?
Re: Stockfish Handicap Matches
Posted: Sun Jun 21, 2020 4:19 pm
by Rebel
yurikvelo wrote: ↑Sun Jun 21, 2020 1:53 pm
What is definition of "able to win"?
Win match or a single game?
Match.
Re: Stockfish Handicap Matches
Posted: Sun Jun 21, 2020 4:20 pm
by Rebel
chrisw wrote: ↑Sun Jun 21, 2020 1:40 pm
I guess the thought of giving knight odds against oldie version did already occur to you?
Would be fun also.