Stockfish 9 - CCRL 40/4

[Adam Hair]

Code: Select all

Rank         Engine                    Elo   +    -   Score  AvOp  Games
 1 Stockfish 9 64-bit                 3525  +22  -21  85.1% -288.2  1090
 2 Houdini 6 64-bit                   3459  +10  -10  74.6% -186.8  4665
 3 Komodo 11.2 64-bit                 3429   +9   -9  70.0% -150.8  4637
   Stockfish 8 64-bit                 3424   +8   -8  68.3% -131.8  5894
 4 Fire 6.1 64-bit                    3295  +13  -13  51.7%  -12.4  2071
 5 Shredder 13 64-bit                 3270   +9  -10  51.3%   -9.4  4065
 6 Fizbo 2 64-bit                     3245  +12  -12  50.9%   -4.1  2556
 7 Andscacs 0.93 64-bit               3214  +15  -15  37.0%  +99.0  1638
 8 Gull 3 64-bit                      3197   +9   -9  47.8%  +16.4  4956
 9 Booot 6.2 64-bit                   3173  +10  -10  41.2%  +69.5  3896
10 Chiron 4 64-bit                    3169   +9   -9  40.2%  +75.1  5342
11 Equinox 3.30 64-bit                3163   +9   -9  49.6%   +4.3  4236
12 Critter 1.6a 64-bit                3159   +7   -7  44.6%  +43.4  7291
13 Fritz 16 64-bit                    3146  +13  -13  36.7% +104.0  2098
14 NirvanaChess 2.4 64-bit            3133  +14  -14  48.5%  +21.2  1831
15 Texel 1.07 64-bit                  3120  +13  -13  47.8%  +22.4  2041
16 Hannibal 1.7 64-bit                3113  +10  -10  44.2%  +44.9  4048

[Modern Times]

And this:

http://www.computerchess.org.uk/ccrl/40 ... librate=no

[Jouni]

+101 . Marco's +45 was really conservative. BTW http://blog.stockfishchess.org/ is still about SF8.

[tpoppins]

Well, Krzysztof Grzelak can sleep soundly now ;) ... until next CCRL update at least. I suspect the +101 number to be slightly exaggerated, so as more SF9 games are added it may settle down to something a little closer to Marco's estimate.

[Modern Times]

It is highly dependent on range of opponents perhaps. Nevertheless, I think it is at last +70 Elo.

[CheckersGuy]

It is highly dependent on range of opponents perhaps. Nevertheless, I think it is at last +70 Elo.

I guess so. Especially since the contempt patch of SF

[Uri Blass]

It is highly dependent on range of opponents perhaps. Nevertheless, I think it is at last +70 Elo.

Not all lists say +70 elo

CEGT 40/20 has stockfish8 as the leading stockfish and even if you give both engines 1 core 3388=3333+55 so only 55 elo advantage.

Unfortunately CEGT did not give stockfish9 1 cpu to play against stockfish8 4 cpu and played stockfish9 1 cpu only against weaker opponents that have only 1 cpu with inferior software and I find it more interesting to see results that are closer to 50%

This is from CEGT 40/20 rating list:

3 Stockfish 8.0 x64 4CPU 3414 14 14 2240 69.1% 3257 54.6%
6 Stockfish 9.0 x64 1CPU 3388 16 16 1500 76.6% 3162 38.3%
14 Stockfish 7.0 x64 4CPU 3338 10 10 4469 66.1% 3206 53.1%
16 Stockfish 8.0 x64 1CPU 3333 11 11 3543 66.9% 3194 52.6%