Open Source Bullet: DoubleCheck 3.3

[lucasart]

I haven't released version 3.3 yet, so it's a snapshot of developpement. A couple of things on the to do list before I do so. Anyway, it seems that the improvement (measured at ultra mega fast time control) are validated in rating list condition.

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 Critter 1.4          3261   32   31   400   76%  3040   30% 
   2 IvanHoe 999946h      3201   30   29   450   69%  3036   31% 
   3 Stockfish 2.2.2      3197   29   28   500   70%  3027   27% 
   4 Protector 1.4        2939   27   27   550   50%  2944   23% 
   5 Umko 1.2             2886   25   25   600   51%  2886   28% 
   6 Texel 1.01           2882   28   28   500   56%  2849   23% 
   7 Toga 1.4.1           2864   25   25   650   55%  2831   25% 
   8 Glaurung 2.2         2834   27   27   550   43%  2905   26% 
   9 Daydreamer 1.75      2741   22   22   700   56%  2695   28% 
  10 Crafty 23.4          2729   23   23   700   52%  2714   23% 
  11 Fruit 2.1            2700   21   21   800   49%  2710   26% 
  12 DoubleCheck 3.3      2662   22   22   700   54%  2633   23% 
  13 GNU Chess 5.07.173b  2649   23   23   650   47%  2673   26% 
  14 Cheng3 1.07          2648   24   24   600   49%  2657   26% 
  15 Arasan 14.1          2639   25   25   550   53%  2619   25% 
  16 Scorpio 2.7          2638   22   22   750   44%  2683   27% 
  17 Rodent 0.13          2618   26   26   500   37%  2712   25% 
  18 Pepito 1.59          2592   22   22   700   50%  2590   23% 
  19 EXchess 6.10         2544   24   24   650   59%  2473   23% 
  20 Sloppy 0.2.2         2541   21   21   800   42%  2601   23% 
  21 Pawny 0.3.1          2494   26   26   550   57%  2427   18% 
  22 Greko 9.0            2492   21   22   800   39%  2578   23% 
  23 Diablo 0.5.1         2435   28   28   450   51%  2422   22% 
  24 Olithink 5.3.2       2433   26   26   500   50%  2439   24% 
  25 Sungorus 1.4         2353   25   25   600   44%  2394   19% 
  26 Ifrit m1.5           2326   30   30   400   50%  2323   21% 
  27 Jazz 501             2323   27   27   500   44%  2362   22% 
  28 KMT Chess 1.2.1      2289   31   31   400   44%  2334   19% 
  29 Beowulf 2.4          2260   35   36   300   45%  2305   20% 
  30 Faile 1.4            1999   43   47   300   12%  2341   13% 

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.

[mar]

I haven't released version 3.3 yet, so it's a snapshot of developpement. A couple of things on the to do list before I do so. Anyway, it seems that the improvement (measured at ultra mega fast time control) are validated in rating list condition.

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 Critter 1.4          3261   32   31   400   76%  3040   30% 
   2 IvanHoe 999946h      3201   30   29   450   69%  3036   31% 
   3 Stockfish 2.2.2      3197   29   28   500   70%  3027   27% 
   4 Protector 1.4        2939   27   27   550   50%  2944   23% 
   5 Umko 1.2             2886   25   25   600   51%  2886   28% 
   6 Texel 1.01           2882   28   28   500   56%  2849   23% 
   7 Toga 1.4.1           2864   25   25   650   55%  2831   25% 
   8 Glaurung 2.2         2834   27   27   550   43%  2905   26% 
   9 Daydreamer 1.75      2741   22   22   700   56%  2695   28% 
  10 Crafty 23.4          2729   23   23   700   52%  2714   23% 
  11 Fruit 2.1            2700   21   21   800   49%  2710   26% 
  12 DoubleCheck 3.3      2662   22   22   700   54%  2633   23% 
  13 GNU Chess 5.07.173b  2649   23   23   650   47%  2673   26% 
  14 Cheng3 1.07          2648   24   24   600   49%  2657   26% 
  15 Arasan 14.1          2639   25   25   550   53%  2619   25% 
  16 Scorpio 2.7          2638   22   22   750   44%  2683   27% 
  17 Rodent 0.13          2618   26   26   500   37%  2712   25% 
  18 Pepito 1.59          2592   22   22   700   50%  2590   23% 
  19 EXchess 6.10         2544   24   24   650   59%  2473   23% 
  20 Sloppy 0.2.2         2541   21   21   800   42%  2601   23% 
  21 Pawny 0.3.1          2494   26   26   550   57%  2427   18% 
  22 Greko 9.0            2492   21   22   800   39%  2578   23% 
  23 Diablo 0.5.1         2435   28   28   450   51%  2422   22% 
  24 Olithink 5.3.2       2433   26   26   500   50%  2439   24% 
  25 Sungorus 1.4         2353   25   25   600   44%  2394   19% 
  26 Ifrit m1.5           2326   30   30   400   50%  2323   21% 
  27 Jazz 501             2323   27   27   500   44%  2362   22% 
  28 KMT Chess 1.2.1      2289   31   31   400   44%  2334   19% 
  29 Beowulf 2.4          2260   35   36   300   45%  2305   20% 
  30 Faile 1.4            1999   43   47   300   12%  2341   13% 

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.

Impressive Lucas,

congratulations for surpassing cheng Now Fruit is the target!

[Graham Banks]

I haven't released version 3.3 yet....

It's hard to keep up!
DoubleCheck is quickly climbing the ranks. You've made serious progress in the past year - over 400 ELO I think. They'll be after you next!

[lucasart]

I haven't released version 3.3 yet, so it's a snapshot of developpement. A couple of things on the to do list before I do so. Anyway, it seems that the improvement (measured at ultra mega fast time control) are validated in rating list condition.

Code: Select all

Rank Name                  Elo    +    - games score oppo. draws 
   1 Critter 1.4          3261   32   31   400   76%  3040   30% 
   2 IvanHoe 999946h      3201   30   29   450   69%  3036   31% 
   3 Stockfish 2.2.2      3197   29   28   500   70%  3027   27% 
   4 Protector 1.4        2939   27   27   550   50%  2944   23% 
   5 Umko 1.2             2886   25   25   600   51%  2886   28% 
   6 Texel 1.01           2882   28   28   500   56%  2849   23% 
   7 Toga 1.4.1           2864   25   25   650   55%  2831   25% 
   8 Glaurung 2.2         2834   27   27   550   43%  2905   26% 
   9 Daydreamer 1.75      2741   22   22   700   56%  2695   28% 
  10 Crafty 23.4          2729   23   23   700   52%  2714   23% 
  11 Fruit 2.1            2700   21   21   800   49%  2710   26% 
  12 DoubleCheck 3.3      2662   22   22   700   54%  2633   23% 
  13 GNU Chess 5.07.173b  2649   23   23   650   47%  2673   26% 
  14 Cheng3 1.07          2648   24   24   600   49%  2657   26% 
  15 Arasan 14.1          2639   25   25   550   53%  2619   25% 
  16 Scorpio 2.7          2638   22   22   750   44%  2683   27% 
  17 Rodent 0.13          2618   26   26   500   37%  2712   25% 
  18 Pepito 1.59          2592   22   22   700   50%  2590   23% 
  19 EXchess 6.10         2544   24   24   650   59%  2473   23% 
  20 Sloppy 0.2.2         2541   21   21   800   42%  2601   23% 
  21 Pawny 0.3.1          2494   26   26   550   57%  2427   18% 
  22 Greko 9.0            2492   21   22   800   39%  2578   23% 
  23 Diablo 0.5.1         2435   28   28   450   51%  2422   22% 
  24 Olithink 5.3.2       2433   26   26   500   50%  2439   24% 
  25 Sungorus 1.4         2353   25   25   600   44%  2394   19% 
  26 Ifrit m1.5           2326   30   30   400   50%  2323   21% 
  27 Jazz 501             2323   27   27   500   44%  2362   22% 
  28 KMT Chess 1.2.1      2289   31   31   400   44%  2334   19% 
  29 Beowulf 2.4          2260   35   36   300   45%  2305   20% 
  30 Faile 1.4            1999   43   47   300   12%  2341   13% 

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.

Impressive Lucas,

congratulations for surpassing cheng Now Fruit is the target!

Thanks

Actually I'm not too worried about Fruit. DC 3.3 still doesn't beat it, but it scores reasonably ok against it. The real problem seems to be Crafty 23.4. DoubleCheck get completely destroyed by Crafty, and scores like 20-25% at fast time control against Crafty. It does better against other ones though (it scores better against Daydreamer 1.75 than against Crafty 23.4).

Crafty often wins by agressing DoubleCheck's poor helpless king :S

[lucasart]

I haven't released version 3.3 yet....

It's hard to keep up!
DoubleCheck is quickly climbing the ranks. You've made serious progress in the past year - over 400 ELO I think. They'll be after you next!

Who "they" ? You mean censorship and smearing campaigns ? Perhaps in anticipation I should write the next versions under a Russian sounding pseudonym

[Graham Banks]

I haven't released version 3.3 yet....

It's hard to keep up!
DoubleCheck is quickly climbing the ranks. You've made serious progress in the past year - over 400 ELO I think. They'll be after you next!

Who "they" ? You mean censorship and smearing campaigns ? Perhaps in anticipation I should write the next versions under a Russian sounding pseudonym

Of course I was trying to be funny.