Strelka 5 by Yuriy Osipov

[Sylwy]

So in what way exactly does "it rock", what exactly is the merit of making a copy that is 30 Elo weaker than the original?

Robert

Extremely simple Robert !

When (soon) Strelka will be +1 ELO over Houdini 2.0b Pro&so on we will all can see a new commercial titan at horizons: Aquarium Strelka 5.0 Super-Pro (after Aquarium Rybka and Aquarium Houdini).
Of course with orders , activation , crackers & so on !

Nice ?

Regards,
SilvianR

[Alex Lobanov]

So in what way exactly does "it rock", what exactly is the merit of making a copy that is 30 Elo weaker than the original?

Houdini based on Robbo + original Robert code.
Strelka based on Houdini, Ippolit, Stockfish, Critter + original Jury code.

its normal in chess programming

[Houdini]

I don't mind Jury's efforts (imitation is the sincerest form of flattery), I'm just fascinated by people's reactions, even from educated people like Kai.

Robert

[kranium]

So in what way exactly does "it rock", what exactly is the merit of making a copy that is 30 Elo weaker than the original?

Robert

Well at least 2 people, (Jury and Jim Ablett) now have some very interesting source code...
i.e. a raw (untuned, to use Jury's word) codebase which approaches Houdini's strength.

[mclane]

look into the following game, as an example:


[Event "40/120"]
[Site "atom netbook"]
[Date "2011.10.18"]
[Round "1"]
[White "Hiarcs 12 MP [t1]"]
[Black "Strelka 5"]
[ECO "D01"]
[Result "0-1"]

1. Nc3 Nf6 2. d4 d5 3. Bg5 Nbd7 4. Nf3 h6 5. Bf4 a6 6. e3
b5 7. Bd3 c5 8. dxc5 Nxc5 9. Be2 b4 10. Nb1 g5 11. Be5 Ncd7
12. c3 Nxe5 13. Nxe5 Bg7 14. Nc6 Qb6 15. Nxb4 O-O 16. Na3
a5 17. Nd3 Ne4 18. O-O Rb8 19. Nc2 Rd8 20. Nd4 e5 21. Nf3
Re8 22. Rb1 Bf5 23. Nd2 Nd6 24. Nb3 Nc4 25. Qc2 Rec8
26. Qd1 a4 27. Na1 d4 28. b3 Na3 29. Rc1 dxe3 30. Nb4 Be6
31. bxa4 exf2+ 32. Rxf2 e4 33. Nb3 Nc4 34. Bxc4 e3 35. Re2
Bxc4 36. a5 Qa7 37. Kh1 0-1

[Sylwy]

Well at least 2 people, (Jury and Jim Ablett) now have some very interesting source code...

Yeah Norm ,



Greedy ?

[Laskos]

Code: Select all

    Program                            Score      %      Elo    +   -    Draws

  1 Houdini 1.5a w32               : 1242.5/2300  54.0   3214   11  11   35.9 %
  2 Strelka 5                      : 1057.5/2300  46.0   3186   11  11   35.9 %

It rocks, only 28 +/ -11 Elo points weaker than Houdini, clearly the second strongest program, and an untuned one! Now Yuri, tune it!

Kai

"It rocks", LOL. People's reactions to Strelka are hilarious.

Jury literally said: "I mostly made a Houdini 1.5a copy, I apologize to Robert Houdart".
You have verified the author's claim by means of the similarity detector - I guess that Strelka 5 is actually closer to Houdini 1.5 than Houdini 2 is.

So in what way exactly does "it rock", what exactly is the merit of making a copy that is 30 Elo weaker than the original?

Robert

Now, with a better compile, Strelka 5 is ~15 Elo points weaker than Houdini 1.5 (both 32 and 64 bit versions). First, I said that it rocks without knowing just how much similar it is to Houdini 1.5, its evaluation is a bit crazy and dissimilar to anything. Second, I hope Yuri finally will release it as an open source. Third, I was not very much pleased that you went commercial, at the same time I have nothing fundamentally against it, you spent many hours on Houdini's development.

The advent of banned for a long time on CCC (how stupid they are?) open source Ippos is really a revolution in top CC programming (and not yet a fully assimilated one). There is also Stockfish to inspire people (based on my similarity tester, very few are using its sources, maybe they are modifying them beyond recognition). If Strelka 5 sources will appear, it would mean another, smaller revolution. Yuri writes very compact, readable sources, no wonder his Strelka 2.0 sources were copied by some well-known commercial authors. Strelka 2.0 is not totally a Rybka 1 RE, he basically got what he needed from Rybka 1, then completed it with Fruit 2.1, then tuned it.

You have to admit, Vas was hacked, you will be too, and it's much better if Yuri does this. Imagine a Saint in Hyattian or CCC books doing this, without any intention of releasing the sources, selling it and so on. Then go prove something to "I don't have time to check every Saint".

Kai

[Laskos]

Strong result from Strelka 5 with the new x64 compile

Code: Select all

    Program                            Score     %        Elo    +   -    Draws

  1 Houdini 1.5a x64               : 1114.0/2180  51.1   3204   12  12   34.0 %
  2 Strelka 5                      : 1066.0/2180  48.9   3196   12  12   34.0 %

Only 8 +/- 12 (95% confidence) Elo points weaker than Houdini 1.5a.

Kai

[Osipov Jury]

I don't mind Jury's efforts (imitation is the sincerest form of flattery), I'm just fascinated by people's reactions, even from educated people like Kai.

Robert

Hi, Robert !

I would like to send you the source code of Strelka 5. If you don't mind.

[rbarreira]

I don't mind Jury's efforts (imitation is the sincerest form of flattery), I'm just fascinated by people's reactions, even from educated people like Kai.

Robert

Hi, Robert !

I would like to send you the source code of Strelka 5. If you don't mind.

This thread delivers in entertainment.