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6th International CSVN Tournament

Rybka (Computer)8.5/9(+8 -0 =1)[games]
Deep Sjeng (Computer)7.5/9(+7 -1 =1)[games]
Shredder (Computer)6.5/9(+6 -2 =1)[games]
Deep Gandalf (Computer)6/9(+5 -2 =2)[games]
The Baron (Computer)4.5/9(+3 -3 =3)[games]
The King (Computer)4.5/9(+4 -4 =1)[games]
Ant (Computer)4/8(+3 -3 =2)[games]
XINIX (Computer)4/9(+3 -4 =2)[games]
IsiChess (Computer)3.5/9(+3 -5 =1)[games]
Hermann (Computer)3/8(+2 -4 =2)[games]
Argonaut (Computer)3/8(+3 -5 =0)[games]
Neurosis (Computer)1.5/8(+1 -6 =1)[games]
Diep (Computer)1.5/4(+1 -2 =1)[games]
Usurpator (Computer)0/8(+0 -8 =0)[games]

 page 1 of 3; games 1-25 of 58  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Neurosis vs The King 0-13220056th International CSVN TournamentD92 Grunfeld, 5.Bf4
2. Argonaut vs Rybka 0-14220066th International CSVN TournamentB50 Sicilian
3. XINIX vs Argonaut  1-06320066th International CSVN TournamentC68 Ruy Lopez, Exchange
4. Ant vs Rybka 0-13420066th International CSVN TournamentA58 Benko Gambit
5. Deep Gandalf vs IsiChess  1-04520066th International CSVN TournamentD43 Queen's Gambit Declined Semi-Slav
6. The King vs The Baron 1-06120066th International CSVN TournamentB33 Sicilian
7. Neurosis vs Hermann  ½-½7220066th International CSVN TournamentD05 Queen's Pawn Game
8. Shredder vs Deep Sjeng 0-18920066th International CSVN TournamentB81 Sicilian, Scheveningen, Keres Attack
9. Usurpator vs Argonaut 0-11920066th International CSVN TournamentD02 Queen's Pawn Game
10. XINIX vs Diep  1-04620066th International CSVN TournamentB33 Sicilian
11. Deep Sjeng vs The King 1-02920066th International CSVN TournamentB62 Sicilian, Richter-Rauzer
12. Rybka vs Deep Gandalf 1-05720066th International CSVN TournamentC42 Petrov Defense
13. IsiChess vs Shredder  0-15720066th International CSVN TournamentB59 Sicilian, Boleslavsky Variation, 7.Nb3
14. Deep Gandalf vs Hermann  1-05620066th International CSVN TournamentC45 Scotch Game
15. IsiChess vs Usurpator  1-03120066th International CSVN TournamentC03 French, Tarrasch
16. The King vs XINIX 1-06120066th International CSVN TournamentA57 Benko Gambit
17. Neurosis vs Deep Sjeng  0-14220066th International CSVN TournamentB40 Sicilian
18. Shredder vs The Baron  1-05820066th International CSVN TournamentB33 Sicilian
19. Ant vs Diep ½-½9120066th International CSVN TournamentD82 Grunfeld, 4.Bf4
20. The Baron vs Neurosis  1-04220066th International CSVN TournamentD02 Queen's Pawn Game
21. Diep vs Usurpator  1-02920066th International CSVN TournamentD20 Queen's Gambit Accepted
22. Hermann vs Ant  0-16720066th International CSVN TournamentC42 Petrov Defense
23. XINIX vs IsiChess  ½-½4820066th International CSVN TournamentB53 Sicilian
24. Argonaut vs The King  0-15520066th International CSVN TournamentC45 Scotch Game
25. The Baron vs XINIX  ½-½6520066th International CSVN TournamentC03 French, Tarrasch
 page 1 of 3; games 1-25 of 58  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2)  

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Kibitzer's Corner
May-07-06  Dionyseus: Keep in mind Rybka still doesn't support multi-processors, which makes Rybka's wins even more impressive.
May-08-06  cheski: What an impressive win by Rybka.
What was the <time format> of these games? Like a human tournament, 40/40/20?
Premium Chessgames Member
  Dr. Funkenstein: Hmm I don't forsee strong sales for the Usurpator computer system in the future.
May-08-06  panigma: Does anyone know:

Who decides to resign in these games? Does the computer resign when its own eval hits some certain value (in the other computer's favor?)

May-08-06  notyetagm: <panigma> Usually the operator resigns when he see that the game is lost and his engine agrees with his assessment.

If the engine's operator evaluates the board position as lost and the engine sees -4.00 , there is not much point in playing on. Computers do not make the tactical mistakes that allow miracle saves in the endgame.

May-08-06  notyetagm: A tremendous tournament for Rybka, again. Only deep Deep Shredder was able to take 1/2 a point from Rybka.

When it becomes available later this year Deep Rybka will be like a chess-playing god.

May-09-06  doremi: Fritz did not play, but considering that it is about as strong as Scredder, we could expect Fritz to score around 6.5/9 as well, 2 points behind Rybka.

Kramnik will be playing the second best computer, i.e. Fritz, later this year, and the promotional slogan 'last chance for humankind to beat the computer' loses credibility if he does not play against the best computer.

I don't believe that Chessbase is going to go with the Rybka engine though, rather they want promotion for Fritz!

May-09-06  chessmoron: Where's Zappa or Fruit?
May-09-06  chessmoron: <doremi> Have you heard of Zappa?--much better than Fritz
May-10-06  doremi: Yes, but Zappa is considered second tier by most, though. Fruit was the wave before Rybka, but was itself drowned by the Rybka wave.
Premium Chessgames Member
  MrSpock: Please don't forget Hiarcs 10, the number two of the swedish list.
Premium Chessgames Member
  norami: How come on that swedish list it's always 256MB 1200MHz? Can't they do better than that?
May-11-06  Sith: Zappa is the best? But zappa is single core isnīt? Can zappa beat shredder dual core? Well Shredder was using atlhon 64 x2 dual core and is not ease to say: Zappa can beat him!
May-12-06  notyetagm: <doremi: Yes, but Zappa is considered second tier by most, though. Fruit was the wave before Rybka, but was itself drowned by the Rybka wave.>

Yes, <Rybka> is the strongest chess engine currently available by an unbelievable margin.

May-12-06  chessmoron: We will wait see who is the best: Rybka or Zappa in the Chess Olympiad in Turin.
May-12-06  notyetagm: <chessmoron: We will wait see who is the best: Rybka or Zappa in the Chess Olympiad in Turin.>

Rybka has already defeated Zappa; see Zappa vs Rybka, 2005.

May-12-06  chessmoron: <notyetagm> I know. But it is still one game. Besides, there aren't enough tests between the new Zappa version.
May-12-06  notyetagm: <chessmoron> Can you tell me more about this "new Zappa version"?

Hopefully the Rybka versus Zappa rivalry will be as good as Anand versus Topalov.

It would be good for computer chess if Zappa beats Rybka at the Olympiad but we will see.

May-14-06  Dionyseus: <Notyetagm> Basically he's talking about the multiprocessor version of Zappa. A quad (4 cpu) Zap!Chess Paderborn 64-bit beat Rybka 1.2 64-bit (still single cpu) 25.5-24.5. You can read more about this extremely close match here:

It is currently 1 elo point higher than Rybka 1.1 in the all-versions list, but note that it has not been assigned a ranking yet because it only has played 79 games so far and it requires at least 150 games. You can see the list here:

May-14-06  notyetagm: <Dionyseus> So Zappa on 4 cpus is approximately equal to Rybka on 1 cpu. Damn! That is some advertisement for Rybka.

No engine will have a chance when Rybka is finally available in a multi-threaded version.

Premium Chessgames Member
  jaime gallegos: why Rybka played only 3 games with Whites ?
May-18-06  cotdt: engine vs. engine strength is different from engine vs. human. some of these top engines are pretty average against GM's positional play.
May-23-06  ryanpd: <cotdt> Can you give me an example of a top engine that performs "average" against the typical GM?
Aug-08-06  sharpnova: <doremi>
fritz is not the second strongest engine, nor was it at the time of your post. for a long time before, fruit was significantly stronger than fritz. hiarcs 10 is as well.
Aug-22-06  DANIEL SO: rybka is a great chess computer going undefeated
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