Which IvanHoe Engine Is Strongest

[David Schumaker]

I have seen many discussions and rating with other versions of IvanHoe that are supposedly not official releases. I just wanted to know which IvanHoe is strongest and where can I download the newest Ivanhoes. After many games at 40/1 time controls it seems that IvanHoe 999957a is strongest. These results are based on very fast games though. My rating list is as follows.

Code: Select all

    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Houdini 1.03a                  : 3242   23  23   440    60.1 %   3170   50.7 %
  2 IvanHoe 999957a                : 3223   25  25   380    57.5 %   3170   49.2 %
  3 Houdini 1.02                   : 3212   23  23   440    55.9 %   3170   49.5 %
  4 IvanHoe 999963                 : 3197   18  18   680    54.7 %   3164   53.5 %
  5 IvanHoe 999952a                : 3195   23  23   400    53.4 %   3171   55.8 %
  6 RobboLito 0085g3               : 3191   19  19   560    51.4 %   3181   56.1 %
  7 Fire 1.31 Warrior              : 3184   26  26   360    50.0 %   3184   48.9 %
  8 Stockfish 1.9                  : 3170   28  28   360    46.8 %   3192   38.6 %
  9 Fire 1.31                      : 3166   21  21   480    47.8 %   3181   53.5 %
 10 Stockfish 1.8                  : 3157   27  28   340    44.9 %   3193   45.0 %
 11 Stockfish 1.7.1 ZugDet         : 3145   21  21   600    46.0 %   3172   44.3 %
 12 Stockfish 1.7.1                : 3124   22  22   600    43.1 %   3172   38.5 %
 13 Rybka 3.0                      : 3123   18  18   840    44.3 %   3162   43.2 %

Thanks to anybody who can help me find the other IvanHoe Engines. Also, does anybody know if there are any vast differences in strength relative to other engines at longer time controls.

Thanks.........................................................................

[Dann Corbit]

I have seen many discussions and rating with other versions of IvanHoe that are supposedly not official releases. I just wanted to know which IvanHoe is strongest and where can I download the newest Ivanhoes. After many games at 40/1 time controls it seems that IvanHoe 999957a is strongest. These results are based on very fast games though. My rating list is as follows.

Code: Select all

    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Houdini 1.03a                  : 3242   23  23   440    60.1 %   3170   50.7 %
  2 IvanHoe 999957a                : 3223   25  25   380    57.5 %   3170   49.2 %
  3 Houdini 1.02                   : 3212   23  23   440    55.9 %   3170   49.5 %
  4 IvanHoe 999963                 : 3197   18  18   680    54.7 %   3164   53.5 %
  5 IvanHoe 999952a                : 3195   23  23   400    53.4 %   3171   55.8 %
  6 RobboLito 0085g3               : 3191   19  19   560    51.4 %   3181   56.1 %
  7 Fire 1.31 Warrior              : 3184   26  26   360    50.0 %   3184   48.9 %
  8 Stockfish 1.9                  : 3170   28  28   360    46.8 %   3192   38.6 %
  9 Fire 1.31                      : 3166   21  21   480    47.8 %   3181   53.5 %
 10 Stockfish 1.8                  : 3157   27  28   340    44.9 %   3193   45.0 %
 11 Stockfish 1.7.1 ZugDet         : 3145   21  21   600    46.0 %   3172   44.3 %
 12 Stockfish 1.7.1                : 3124   22  22   600    43.1 %   3172   38.5 %
 13 Rybka 3.0                      : 3123   18  18   840    44.3 %   3162   43.2 %

Thanks to anybody who can help me find the other IvanHoe Engines. Also, does anybody know if there are any vast differences in strength relative to other engines at longer time controls.

Thanks.........................................................................

There are zillions of IvanHoe engines (probably 100+ builds released).
You can find a bunch of them here:
http://www.chesslogik.com/ivanhoe.htm

and you can do a web search using google to find dozens of other builds.

Nobody knows which one is strongest. Most of the testing seems a little helter-skelter or light. Sometimes openchess lists tests, but they are generally less than 100 games and therefore not very useful except as wild guestimates.

[Dann Corbit]

I have seen many discussions and rating with other versions of IvanHoe that are supposedly not official releases. I just wanted to know which IvanHoe is strongest and where can I download the newest Ivanhoes. After many games at 40/1 time controls it seems that IvanHoe 999957a is strongest. These results are based on very fast games though. My rating list is as follows.

Code: Select all

    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Houdini 1.03a                  : 3242   23  23   440    60.1 %   3170   50.7 %
  2 IvanHoe 999957a                : 3223   25  25   380    57.5 %   3170   49.2 %
  3 Houdini 1.02                   : 3212   23  23   440    55.9 %   3170   49.5 %
  4 IvanHoe 999963                 : 3197   18  18   680    54.7 %   3164   53.5 %
  5 IvanHoe 999952a                : 3195   23  23   400    53.4 %   3171   55.8 %
  6 RobboLito 0085g3               : 3191   19  19   560    51.4 %   3181   56.1 %
  7 Fire 1.31 Warrior              : 3184   26  26   360    50.0 %   3184   48.9 %
  8 Stockfish 1.9                  : 3170   28  28   360    46.8 %   3192   38.6 %
  9 Fire 1.31                      : 3166   21  21   480    47.8 %   3181   53.5 %
 10 Stockfish 1.8                  : 3157   27  28   340    44.9 %   3193   45.0 %
 11 Stockfish 1.7.1 ZugDet         : 3145   21  21   600    46.0 %   3172   44.3 %
 12 Stockfish 1.7.1                : 3124   22  22   600    43.1 %   3172   38.5 %
 13 Rybka 3.0                      : 3123   18  18   840    44.3 %   3162   43.2 %

Thanks to anybody who can help me find the other IvanHoe Engines. Also, does anybody know if there are any vast differences in strength relative to other engines at longer time controls.

Thanks.........................................................................

There are zillions of IvanHoe engines (probably 100+ builds released).
You can find a bunch of them here:
http://www.chesslogik.com/ivanhoe.htm

and you can do a web search using google to find dozens of other builds.

Nobody knows which one is strongest. Most of the testing seems a little helter-skelter or light. Sometimes openchess lists tests, but they are generally less than 100 games and therefore not very useful except as wild guestimates.

I should mention that every single IvanHoe iteration has memory overwrites in the code.

In addition, Gull has memory overwrites in several places.

[Milos]

I should mention that every single IvanHoe iteration has memory overwrites in the code.

That's just not true. There was once problem with promotions in capture generation and it was corrected in Ivanhoe v57 or something like that, so long time ago (in some private versions the problem was corrected much earlier )
It's funny you say this, coz it makes it easy to detect exactly when you lost interest in Ippo code .

[Dann Corbit]

I should mention that every single IvanHoe iteration has memory overwrites in the code.

That's just not true. There was once problem with promotions in capture generation and it was corrected in Ivanhoe v57 or something like that, so long time ago (in some private versions the problem was corrected much earlier )
It's funny you say this, coz it makes it easy to detect exactly when you lost interest in Ippo code .

OK, I only see memory overwrites in all of the versions from here:
http://www.chesslogik.com/ivanhoe.htm

The last one I tested was 49j.

[gerold]

At 5/3 TC Ivanhoe 49 is about the same elo as you are getting.
In Tournament and matches Harun Taner is testing Ivanhoe 46.
He is getting about the same results. Most of the latest ones
are the same.
You can Google and fine them. Links for that other forum is not
allowed here.

I have tested at longer time control and get the same results.

I got Houdini + 20 over the strongest Ivanhoe with over 2000 games
played.

R4 and Ivanhoe are very close.

Best,
Gerold.

[Milos]

OK, I only see memory overwrites in all of the versions from here:
http://www.chesslogik.com/ivanhoe.htm

The last one I tested was 49j.

I haven't tried Ivanhoes for quite a bit of time, I see movegen is correct in the recent version. Still, if what you say is true then it would be quite easy to check it and correct it in case the problem is in the source. However, if you don't compile it yourself, and use other compiles and complain then there is not much that can be done...

[David Schumaker]

I have seen many discussions and rating with other versions of IvanHoe that are supposedly not official releases. I just wanted to know which IvanHoe is strongest and where can I download the newest Ivanhoes. After many games at 40/1 time controls it seems that IvanHoe 999957a is strongest. These results are based on very fast games though. My rating list is as follows.

Code: Select all

    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Houdini 1.03a                  : 3242   23  23   440    60.1 %   3170   50.7 %
  2 IvanHoe 999957a                : 3223   25  25   380    57.5 %   3170   49.2 %
  3 Houdini 1.02                   : 3212   23  23   440    55.9 %   3170   49.5 %
  4 IvanHoe 999963                 : 3197   18  18   680    54.7 %   3164   53.5 %
  5 IvanHoe 999952a                : 3195   23  23   400    53.4 %   3171   55.8 %
  6 RobboLito 0085g3               : 3191   19  19   560    51.4 %   3181   56.1 %
  7 Fire 1.31 Warrior              : 3184   26  26   360    50.0 %   3184   48.9 %
  8 Stockfish 1.9                  : 3170   28  28   360    46.8 %   3192   38.6 %
  9 Fire 1.31                      : 3166   21  21   480    47.8 %   3181   53.5 %
 10 Stockfish 1.8                  : 3157   27  28   340    44.9 %   3193   45.0 %
 11 Stockfish 1.7.1 ZugDet         : 3145   21  21   600    46.0 %   3172   44.3 %
 12 Stockfish 1.7.1                : 3124   22  22   600    43.1 %   3172   38.5 %
 13 Rybka 3.0                      : 3123   18  18   840    44.3 %   3162   43.2 %

Thanks to anybody who can help me find the other IvanHoe Engines. Also, does anybody know if there are any vast differences in strength relative to other engines at longer time controls.

Thanks.........................................................................

There are zillions of IvanHoe engines (probably 100+ builds released).
You can find a bunch of them here:
http://www.chesslogik.com/ivanhoe.htm

and you can do a web search using google to find dozens of other builds.

Nobody knows which one is strongest. Most of the testing seems a little helter-skelter or light. Sometimes openchess lists tests, but they are generally less than 100 games and therefore not very useful except as wild guestimates.

Hi Dann,

Thank you for the info. That is where I download all of the IvanHoes from. Last time I checked it was up to version 52a. I checked many times after that and there was no change. All of a sudden theres about 5 more official builds. That means a lot more chess engine testing now. It would be nice to see some stronger competition for Houdini. I guess I will figure out just how strong these new versions are soon. I'll try to find other versions by googling for them.

Thanks................................................................................

[De Vos W]

I have seen many discussions and rating with other versions of IvanHoe that are supposedly not official releases. I just wanted to know which IvanHoe is strongest and where can I download the newest Ivanhoes. After many games at 40/1 time controls it seems that IvanHoe 999957a is strongest. These results are based on very fast games though. My rating list is as follows.

Code: Select all

    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Houdini 1.03a                  : 3242   23  23   440    60.1 %   3170   50.7 %
  2 IvanHoe 999957a                : 3223   25  25   380    57.5 %   3170   49.2 %
  3 Houdini 1.02                   : 3212   23  23   440    55.9 %   3170   49.5 %
  4 IvanHoe 999963                 : 3197   18  18   680    54.7 %   3164   53.5 %
  5 IvanHoe 999952a                : 3195   23  23   400    53.4 %   3171   55.8 %
  6 RobboLito 0085g3               : 3191   19  19   560    51.4 %   3181   56.1 %
  7 Fire 1.31 Warrior              : 3184   26  26   360    50.0 %   3184   48.9 %
  8 Stockfish 1.9                  : 3170   28  28   360    46.8 %   3192   38.6 %
  9 Fire 1.31                      : 3166   21  21   480    47.8 %   3181   53.5 %
 10 Stockfish 1.8                  : 3157   27  28   340    44.9 %   3193   45.0 %
 11 Stockfish 1.7.1 ZugDet         : 3145   21  21   600    46.0 %   3172   44.3 %
 12 Stockfish 1.7.1                : 3124   22  22   600    43.1 %   3172   38.5 %
 13 Rybka 3.0                      : 3123   18  18   840    44.3 %   3162   43.2 %

Thanks to anybody who can help me find the other IvanHoe Engines. Also, does anybody know if there are any vast differences in strength relative to other engines at longer time controls.

Thanks.........................................................................

http://www.mediafire.com/?sharekey=669e ... 082f1c2cd0

[De Vos W]

I have seen many discussions and rating with other versions of IvanHoe that are supposedly not official releases. I just wanted to know which IvanHoe is strongest and where can I download the newest Ivanhoes. After many games at 40/1 time controls it seems that IvanHoe 999957a is strongest. These results are based on very fast games though. My rating list is as follows.

Code: Select all

    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Houdini 1.03a                  : 3242   23  23   440    60.1 %   3170   50.7 %
  2 IvanHoe 999957a                : 3223   25  25   380    57.5 %   3170   49.2 %
  3 Houdini 1.02                   : 3212   23  23   440    55.9 %   3170   49.5 %
  4 IvanHoe 999963                 : 3197   18  18   680    54.7 %   3164   53.5 %
  5 IvanHoe 999952a                : 3195   23  23   400    53.4 %   3171   55.8 %
  6 RobboLito 0085g3               : 3191   19  19   560    51.4 %   3181   56.1 %
  7 Fire 1.31 Warrior              : 3184   26  26   360    50.0 %   3184   48.9 %
  8 Stockfish 1.9                  : 3170   28  28   360    46.8 %   3192   38.6 %
  9 Fire 1.31                      : 3166   21  21   480    47.8 %   3181   53.5 %
 10 Stockfish 1.8                  : 3157   27  28   340    44.9 %   3193   45.0 %
 11 Stockfish 1.7.1 ZugDet         : 3145   21  21   600    46.0 %   3172   44.3 %
 12 Stockfish 1.7.1                : 3124   22  22   600    43.1 %   3172   38.5 %
 13 Rybka 3.0                      : 3123   18  18   840    44.3 %   3162   43.2 %

Thanks to anybody who can help me find the other IvanHoe Engines. Also, does anybody know if there are any vast differences in strength relative to other engines at longer time controls.

Thanks.........................................................................

At the "ahmed chess forum" you find all what you want!