Shredder 11 - +90 ELO after 700 games (FRC)

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Spock

Shredder 11 - +90 ELO after 700 games (FRC)

Post by Spock »

700 games now completed, and the web site updated.

Shredder 11 is without any doubt the strongest publicly available engine for FRC, as shown on the pure list:
http://www.computerchess.org.uk/ccrl/40 ... _pure.html

Of course the private Rybka FRC version still tops the best versions list, but since you can't buy this, it is just an indicator of what will inevitably come when Rybka 3.0 is released with FRC capaility
http://www.computerchess.org.uk/ccrl/404FRC/

Still 200 games in progress (vs Movei 438 and Rybka). Shredder 11 seems to be doing well in both, so I'm certain the +90 ELO will hold, and maybe improve slightly.

Now I wonder what the Hiarcs team have in store for us with Hiarcs 12 :wink:

EDIT:
And if anyone hasn't seen the opening statistics:
http://www.computerchess.org.uk/ccrl/40 ... y_eco.html

Over time these could be quite interesting, but we would need a very large number of games
Uri Blass
Posts: 10892
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Shredder 11 - +90 ELO after 700 games (FRC)

Post by Uri Blass »

Note that movei00_8_438 progress 10 10 10 performed better in tests in normal chess and I think that this personality may also perform better in FRC.

My guess is 30 elo improvement relative to the default version based on results that I saw but I did not do testing.

The advantage is 28 elo in the 40/4 normal list and it also performs better in the infinite loop that has

20 Movei 00.8.438 progress-10 : 2687 47 47 142 56.3 %

30 Movei 00.8.438 : 2596 45 45 154 50.0 %


Progress is one of the uci parameters of movei and it is possible to change it.

Uri
Tony Thomas

Re: Shredder 11 - +90 ELO after 700 games (FRC)

Post by Tony Thomas »

Uri Blass wrote:Note that movei00_8_438 progress 10 10 10 performed better in tests in normal chess and I think that this personality may also perform better in FRC.

My guess is 30 elo improvement relative to the default version based on results that I saw but I did not do testing.

The advantage is 28 elo in the 40/4 normal list and it also performs better in the infinite loop that has

20 Movei 00.8.438 progress-10 : 2687 47 47 142 56.3 %

30 Movei 00.8.438 : 2596 45 45 154 50.0 %


Progress is one of the uci parameters of movei and it is possible to change it.

Uri
Was there a reason for not making it the default value?
Spock

Re: Shredder 11 - +90 ELO after 700 games (FRC)

Post by Spock »

Testing completed

After 900 games, Shredder 11 is +91 ELO over Shredder 10 :)
Uri Blass
Posts: 10892
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Shredder 11 - +90 ELO after 700 games (FRC)

Post by Uri Blass »

Tony Thomas wrote:
Uri Blass wrote:Note that movei00_8_438 progress 10 10 10 performed better in tests in normal chess and I think that this personality may also perform better in FRC.

My guess is 30 elo improvement relative to the default version based on results that I saw but I did not do testing.

The advantage is 28 elo in the 40/4 normal list and it also performs better in the infinite loop that has

20 Movei 00.8.438 progress-10 : 2687 47 47 142 56.3 %

30 Movei 00.8.438 : 2596 45 45 154 50.0 %


Progress is one of the uci parameters of movei and it is possible to change it.

Uri
Was there a reason for not making it the default value?
Yes

I did not know that 10 10 10 are stronger.
I thought that path dependent evaluation is not going to work if
I use hash for pruning but it seems that I was wrong.

Note also that I did not do a lot of testing to get better values in the magic numbers and I guess that it is possible to get 50 elo improvement by tuning and testing.

Some values are simply 0 by default that mean that there is some knowledge that movei does not use and I did not test if using it is productive.

Uri