Open Source Blitz Rating List: Critter

[lucasart]

Impressive performance by Critter 1.4!

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 Critter 1.4          3257   40   38   250   79%  3006   29% 
   2 IvanHoe 999946h      3199   38   37   250   71%  3018   32% 
   3 Stockfish 2.2.1      3180   37   36   300   74%  2967   26% 
   4 Protector 1.4        2929   32   32   350   46%  2965   22% 
   5 Umko 1.2             2876   28   28   450   47%  2911   25% 
   6 Toga 1.4.1           2846   28   28   500   49%  2870   22% 
   7 Daydreamer 1.75      2736   30   29   350   56%  2691   29% 
   8 Fruit 2.1            2700   28   28   400   46%  2725   25% 
   9 Crafty 23.4          2693   29   29   400   36%  2815   24% 
  10 GNU Chess 5.07.173b  2657   30   30   350   44%  2702   25% 
  11 Pepito 1.59          2592   35   35   250   42%  2652   24% 
  12 Greko 9.0            2473   39   41   250   21%  2706   18% 

PS: I know what you're going to say, Critter is closed source. However Richard Vida is ready to distribute his source code by email, to any other trustworthy engine developer who requests it, and he has already done it many times. So it's fair to say that he contributes to the open source effort. Another good thing about Critter is that it's portable and that should be encouraged more. And of course, I was curious to see how IvanHoe and Stockfish would fare against it. I am quite stunned by the result. But Critter won fair and square, they all had the exact same conditions, and there were no time losses, forfeit by illegal move or disconnection or any such pollution. In fact none of the games constituting this rating list were terminated abnormally.

Perhaps Critter scales better than other engines at fast time controls ? (this is all 1'+1")