Open Source Bullet: Ifrit m1.6, Greko 9.2

Discussion of computer chess matches and engine tournaments.

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lucasart
Posts: 3241
Joined: Mon May 31, 2010 1:29 pm
Full name: lucasart

Open Source Bullet: Ifrit m1.6, Greko 9.2

Post by lucasart »

Small improvement for Ifrit (about 30 elo) and no improvement for Greko (a few elo less actually but well below the error bar).

Ratings

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 IvanHoe 999946h      3198   36   35   350   78%  2963   23% 
   2 Stockfish 2.2.2      3178   33   32   400   76%  2963   24% 
   3 Protector 1.4        2919   28   28   500   52%  2907   25% 
   4 MinkoChess 1.3       2917   30   30   400   54%  2892   30% 
   5 Texel 1.01           2873   29   29   450   52%  2870   21% 
   6 Toga 1.4.1           2858   28   28   500   58%  2808   26% 
   7 Glaurung 2.2         2818   30   30   400   38%  2922   29% 
   8 Daydreamer 1.75      2730   25   25   550   51%  2722   30% 
   9 Crafty 23.4          2718   22   22   700   51%  2707   23% 
  10 Fruit 2.1            2700   21   21   750   48%  2716   26% 
  11 Cheng3 1.07          2650   25   25   550   49%  2661   26% 
  12 Arasan 14.1          2634   26   26   500   53%  2617   25% 
  13 GNU Chess 5.07.173b  2630   24   25   550   46%  2662   28% 
  14 Scorpio 2.7          2628   23   23   650   45%  2668   25% 
  15 Rodent 0.14          2621   24   24   550   52%  2606   27% 
  16 Pepito 1.59          2593   22   22   700   51%  2586   24% 
  17 EXchess 6.20         2588   25   25   550   47%  2609   24% 
  18 Sloppy 0.2.2         2559   21   21   800   45%  2595   25% 
  19 Greko 9.2            2484   26   26   500   44%  2532   22% 
  20 Pawny 0.3.1          2478   26   26   550   55%  2428   20% 
  21 Diablo 0.5.1         2432   29   29   400   53%  2408   24% 
  22 Olithink 5.3.2       2421   28   28   450   49%  2430   24% 
  23 Sungorus 1.4         2362   26   26   550   47%  2379   20% 
  24 Ifrit m1.6           2351   28   28   450   54%  2311   24% 
  25 Jazz 501             2318   28   28   450   50%  2315   21% 
  26 KMT Chess 1.2.1      2288   30   30   400   48%  2298   20% 
  27 Beowulf 2.4          2266   35   35   300   51%  2259   19% 
  28 RattateChess 1.0     2254   38   38   250   51%  2241   20% 
  29 Faile 1.4            1981   41   45   350   11%  2331   12% 
Conditions
* Open Source and Portable engines only: no closed source, or windows only programs.
* 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.
* speed benchmark: "./stockfish_2.2.2 bench > /dev/null" in 5.38 seconds.
* StockFish book, up to 8 book moves only. Repeat same opening with colors switched.
* Bayeselo, offset Fruit 2.1 = 2700 elo.