Open Source Bullet: DoubleCheck 2.6

Discussion of computer chess matches and engine tournaments.

Moderator: Ras

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

Open Source Bullet: DoubleCheck 2.6

Post by lucasart »

I've submitted my new version of DoubleCheck to the test. As usual the source code and linux+windows 64 bit compiles are available on WBEC, courtesy of Leo Dijiksmann
wbec-ridderkerk.nl/html/details1/DoubleCheck.html
Ratings

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 Critter 1.4          3245   32   31   400   76%  3026   30% 
   2 IvanHoe 999946h      3184   31   30   400   67%  3041   33% 
   3 Stockfish 2.2.2      3179   29   29   450   68%  3029   29% 
   4 Protector 1.4        2928   28   28   500   49%  2936   23% 
   5 Umko 1.2             2870   26   25   600   53%  2856   26% 
   6 Toga 1.4.1           2855   24   23   750   59%  2797   24% 
   7 Glaurung 2.2         2826   31   31   400   35%  2963   28% 
   8 Daydreamer 1.75      2744   23   23   650   59%  2675   30% 
   9 Fruit 2.1            2700   22   22   700   51%  2696   26% 
  10 Crafty 23.4          2690   25   25   550   47%  2709   23% 
  11 Cheng3 1.07          2654   25   25   550   54%  2623   25% 
  12 GNU Chess 5.07.173b  2645   24   24   600   48%  2663   27% 
  13 Arasan 13.4          2644   24   24   600   49%  2653   23% 
  14 Rodent 0.11          2635   23   23   650   52%  2622   26% 
  15 Scorpio 2.7          2632   21   22   750   45%  2671   26% 
  16 Pepito 1.59          2586   23   23   650   50%  2585   23% 
  17 Sloppy 0.2.2         2548   22   22   750   41%  2609   25% 
  18 DoubleCheck 2.6      2541   24   24   600   49%  2543   20% 
  19 EXchess 6.10         2537   24   24   650   59%  2460   22% 
  20 Greko 9.0            2488   22   22   750   40%  2568   24% 
  21 Pawny 0.3.1          2470   26   26   550   49%  2477   18% 
  22 Olithink 5.3.0       2363   28   28   450   48%  2377   21% 
  23 Sungorus 1.4         2315   26   26   550   37%  2416   20% 
  24 Jazz 501             2298   30   30   400   42%  2364   22% 
  25 Ifrit m1.5           2287   34   34   300   46%  2316   21% 
  26 Beowulf 2.4          2229   35   35   300   37%  2337   19% 
  27 KMT Chess 1.2.1      2224   35   35   300   35%  2338   19% 
Conditions
* Open Source and Portable engines only: no closed source, commercial, 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.
* 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.
lucasart
Posts: 3241
Joined: Mon May 31, 2010 1:29 pm
Full name: lucasart

Re: Open Source Bullet: DoubleCheck 2.6

Post by lucasart »

A nice tactical win against Scorpio

Code: Select all

[White "Scorpio 2.7"]
[Black "DoubleCheck 2.6"]
[Result "0-1"]
[PlyCount "64"]
[TimeControl "60+1"]

1. e4 {book} c5 {book} 2. Nf3 {book} d6 {book} 3. d4 {book} cxd4 {book}
4. Nxd4 {book} Nf6 {book} 5. Nc3 {book} a6 {book} 6. Bg5 {book} e6 {book}
7. Qf3 {book} Bd7 {book} 8. O-O-O {book} Nc6 {book} 9. Be2 {+0.99/12 5.8s}
Nxd4 {-0.41/13 2.8s} 10. Rxd4 {+0.99/13 3.8s} Be7 {-0.38/14 2.7s}
11. Bxf6 {+1.01/11 2.4s} gxf6 {-0.32/14 2.7s} 12. Qg3 {+0.85/13 3.6s}
Qa5 {-0.32/14 2.6s} 13. f4 {+0.62/13 2.0s} Kf8 {-0.36/14 2.6s}
14. Qh4 {+1.24/12 2.6s} h5 {-0.09/13 2.6s} 15. f5 {+1.20/11 2.0s}
Rg8 {-0.16/12 2.5s} 16. Qxh5 {+1.51/11 2.2s} Rxg2 {-0.06/12 2.5s}
17. Bf3 {+1.17/10 2.7s} Rg8 {-0.08/14 2.4s} 18. Qh6+ {+1.16/11 2.7s}
Ke8 {-0.07/14 2.4s} 19. Qh7 {+0.93/12 3.4s} Rf8 {-0.06/14 2.4s}
20. Bg4 {+1.06/11 1.7s} Qe5 {+0.16/13 3.4s} 21. Rd2 {+1.11/12 1.8s}
b5 {+0.25/13 2.3s} 22. a3 {+0.93/10 2.3s} a5 {+0.57/14 2.3s}
23. fxe6 {0.00/11 4.3s} fxe6 {+0.61/13 2.2s} 24. h4 {+0.25/10 2.7s}
b4 {+1.23/13 2.2s} 25. Nb1 {-0.22/11 1.5s} Bc6 {+1.76/12 2.1s}
26. Bf3 {-1.13/10 2.0s} f5 {+2.01/12 2.2s} 27. Re2 {-1.96/9 3.4s}
bxa3 {+2.18/11 2.1s} 28. bxa3 {-2.81/9 1.6s} Rb8 {+1.98/11 2.1s}
29. c3 {-2.86/10 3.5s} Qb5 {+2.82/12 2.1s} 30. Qg6+ {-4.08/10 1.9s}
Kd7 {+4.59/10 2.1s} 31. Nd2 {-7.26/11 3.8s} Qd3 {+7.93/10 2.0s}
32. Re3 {-12.92/10 3.7s} Qxe3 {+10.24/12 2.0s, White resigns} 0-1