Saturday, September 20, 2014

iCE 2 first ratings are being established


After an official release one is always curious whether one was able to improve the engine and if so by how much. I was pretty sure that the new iCE is better, my test against the old version at very short time controls showed a real improvement. But I was unsure how this scales to other opponents and much longer time controls.

As with iCE 1 Lars Hallerström performed an initial rating test and the results look encouraging. In his private rating list iCE 2 gained 200 ELO and climbed 66 spots. Considering the fact that it now already is faced with some 4 core engines while iCE is running only on 1 this is nice progress. 


 53 Ice 2.0 (64) : 2954   19  19  1000    57.2 %   2904   26.2 %
119 Ice 1.0 (64) : 2754   19  19   900    52.3 %   2738   26.7 %


53 Ice 2.0 (64)              : 2954  1000 (+441,=262,-297), 57.2 %

Fruit 2.3.1                   :  40 (+ 26,= 10,-  4), 77.5 %
Ktulu 9                       :  40 (+ 28,=  7,-  5), 78.8 %
Spike 1.4                     :  40 (+ 14,= 12,- 14), 50.0 %
Komodo CCT (64)               :  40 (+  3,=  9,- 28), 18.8 %
Junior 12.5.0.3 (4cores)      :  40 (+ 14,=  9,- 17), 46.2 %
Deuterium 14.01 (64)          :  40 (+ 14,= 11,- 15), 48.8 %
Gaviota 0.86 (64)             :  40 (+ 21,= 13,-  6), 68.8 %
Dirty Feb 26 2014 (64)        :  40 (+ 27,=  7,-  6), 76.2 %
Sjeng WC2008 (64)             :  40 (+ 21,=  8,- 11), 62.5 %
Crafty-23.8 (64)              :  40 (+ 16,= 13,- 11), 56.2 %
Texel 1.03 (64)               :  40 (+ 14,= 18,-  8), 57.5 %
Bug2 1.9 (64)                 :  40 (+ 27,=  8,-  5), 77.5 %
Scorpio 2.7.6 JA (64)         :  40 (+ 10,= 14,- 16), 42.5 %
EX 7.11b (64)                 :  40 (+ 25,= 12,-  3), 77.5 %
Djinn 1.010 (64)              :  60 (+ 39,= 19,-  2), 80.8 %
Cheng 4.36 (64-4cores)        :  40 (+ 14,= 15,- 11), 53.8 %
Rybka 4.1 SSE42 (64-4cores)   :  40 (+  3,= 13,- 24), 23.8 %
Hannibal 1.4a (64-4cores)     :  40 (+  5,=  9,- 26), 23.8 %
Chiron 2 (64-4cores)          :  40 (+  3,= 10,- 27), 20.0 %
Senpai 1.0 sse42 (64-4cores)  :  40 (+  1,= 12,- 27), 17.5 %
BobCat 3.25 (64)              :  40 (+ 20,= 11,-  9), 63.7 %
Brutus 8.05 JA (64)           :  40 (+ 34,=  6,-  0), 92.5 %
GreKo 12.0 JV (64)            :  60 (+ 55,=  4,-  1), 95.0 %
Spark 1.0 (64-4cores)         :  40 (+  7,= 12,- 21), 32.5 %


Thanks Lars for providing the data