Open Source Bullet: EXchess 6.20

[lucasart]

+33 elo compared to 6.1. Not bad!
Ratings

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 Critter 1.4          3254   32   31   400   76%  3033   30% 
   2 IvanHoe 999946h      3194   30   29   450   69%  3029   31% 
   3 Stockfish 2.2.2      3191   29   28   500   70%  3020   27% 
   4 Protector 1.4        2933   27   27   550   50%  2939   23% 
   5 Umko 1.2             2881   25   25   600   51%  2882   28% 
   6 Texel 1.01           2875   28   27   500   54%  2854   23% 
   7 Toga 1.4.1           2861   25   25   650   55%  2829   25% 
   8 Glaurung 2.2         2819   28   28   500   38%  2933   28% 
   9 Daydreamer 1.75      2742   23   23   650   55%  2704   30% 
  10 Crafty 23.4          2725   22   22   750   52%  2710   23% 
  11 DoubleCheck 3.4.1    2701   23   23   600   52%  2688   31% 
  12 Fruit 2.1            2700   20   20   850   49%  2705   25% 
  13 Cheng3 1.07          2656   23   23   650   50%  2656   27% 
  14 GNU Chess 5.07.173b  2648   22   22   700   47%  2672   28% 
  15 Rodent 0.14          2637   23   23   600   52%  2620   30% 
  16 Scorpio 2.7          2637   22   22   750   43%  2690   26% 
  17 Arasan 14.1          2632   25   25   550   50%  2631   24% 
  18 Pepito 1.59          2600   22   22   750   49%  2601   24% 
  19 EXchess 6.20         2588   25   25   550   43%  2635   24% 
  20 Sloppy 0.2.2         2552   21   21   800   43%  2604   25% 
  21 Pawny 0.3.1          2498   26   26   550   57%  2434   19% 
  22 Greko 9.0            2497   22   22   750   39%  2582   22% 
  23 Olithink 5.3.2       2437   28   28   450   51%  2432   24% 
  24 Diablo 0.5.1         2436   29   29   400   53%  2411   22% 
  25 Sungorus 1.4         2362   26   26   550   46%  2384   19% 
  26 Jazz 501             2328   27   27   500   48%  2336   22% 
  27 Ifrit m1.5           2328   28   28   450   51%  2318   22% 
  28 KMT Chess 1.2.1      2285   30   30   400   47%  2301   19% 
  29 Beowulf 2.4          2259   34   35   300   50%  2259   20% 
  30 RattateChess 1.0     2249   38   38   250   51%  2241   19% 
  31 Faile 1.4            2004   39   42   350   13%  2330   14% 

Conditions
* Open Source and Portable engines only: no closed source, commercial, or windows only programs. I made an exception for Critter, because: it's non commercial, multi plateform, Richard is willing to send his sources to selected developpers, and otherwise SF and IH would have no one to play with but each other.
* Copyleft: Ideally licensed under the GNU GPL, or with copyright restrictions that are not excessive.
* 1min+1sec/move, 64 MB Hash, 1 Thread, 64-bit, Ponder off, no EGTB.
* 8 book moves: neither to little, nor too much. Allows engines to develop their own plan, while offering a large enough number of opening positions.
* Bayeselo, offset Fruit 2.1 = 2700 elo.

[dchoman]

Hi Lucas,

Thanks for testing EXchess! Any chance I can get a PGN file of the games it played? I'd like to look for patterns against various opponents at these time controls, and your opponent pool is much larger than my own (something I've been planning to remedy).

- Dan

[lucasart]

of course, just pm me your email adress, and I'll send you the pgn