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| Jan-26-07 | | vesivialvy93: <sydro> exactly ! in 1 min game the diff is like 10 ply for the faster comp vs 6-7 ply and 1 hour game is more like 16ply vs 15ply |
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| Jan-27-07 | | Dionyseus: Rybka has just dismanted Deep Fritz 10 in a 6 game classical time control match by a score of 5.5-0.5, the machines that were used were identical to the one used in the Kramnik - Deep Fritz 10 match: You can download the pgn and the commentaries here:
http://perso.orange.fr/lefouduroi/t... |
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| Jan-27-07 | | Dionyseus: Check out this impressive win from that match, keep in mind these games were playing in classical time control, 120 minutes for 40 moves, 60 minutes for next 20 moves, and 30 minutes for the remainder. [Event "Rybka 2.2n2 mpx64 - Deep Fritz 10"]
[Site "?"]
[Date "2007.01.23"]
[Round "3.1"]
[White "Rybka 2.2n2 mp"]
[Black "Deep Fritz 10"]
[Result "1-0"]
[ECO "D48"]
[PlyCount "101"]
[EventDate "2007.01.22"]
[EventType "tourn"]
[Source "Schnapp"]
1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3
Bb7 9. O-O a6 10. e4 c5 11. d5 Bd6 12. dxe6 fxe6 13. Bxb5 Bxh2+ 14. Nxh2 axb5
15. Nxb5 O-O 16. Nd6 Ba6 17. Qb3 Qe7 18. Rd1 Be2 19. Rd2 c4 20. Nxc4 Nc5 21.
Qc2 Bxc4 22. Qxc4 Ra4 23. b4 Ncxe4 24. Rd4 Nd6 25. Qb3 Nb5 26. Rc4 Rfa8 27. a3
Nd6 28. Rd4 Nf5 29. Rf4 Qf7 30. Nf3 Nd5 31. Re4 h6 32. Bb2 Nd6 33. Rg4 Ne8 34.
Re1 R4a7 35. b5 Nef6 36. Ne5 Qh5 37. Rc4 Rf8 38. a4 Nb6 39. Rd4 Nbd5 40. g4 Qe8
41. Ba3 Rff7 42. Nxf7 Kxf7 43. b6 Rb7 44. a5 Qa8 45. Qb5 Nxb6 46. Rb1 Kg8 47.
Qc6 Qxa5 48. Qxb7 Qxa3 49. Qxb6 Qe7 50. Ra1 Kh7 51. Qb1+ 1-0 Here's some diagrams from the game:
position after 12...fxe6
click for larger viewposition after 20.Nxc4
click for larger viewposition after 26...Rfa8
click for larger viewposition after 33.Rg4
click for larger viewfinal position after 51.Qb1+, there's a forced mate here, can you solve it?
click for larger view |
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| Jan-29-07 | | norami: The theory stated above was that doubling the computer's speed adds 40 points to the rating. Intel just announced they've got a new chip where the smallest elements are 45 nanometers instead of the 90 nm now in common use. By how much will that speed up a computer? |
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| Jan-31-07 | | whatthefat: <Dionyseus: Rybka has just dismanted Deep Fritz 10 in a 6 game classical time control match by a score of 5.5-0.5, the machines that were used were identical to the one used in the Kramnik - Deep Fritz 10 match> That's truly astounding! I know it's only 6 games, so it's hardly statistically meaningful. But if the same results held up over a larger sample, that's a 420 point rating gap. I guess Kramnik should be happy he didn't play Rybka. Mind you, one could argue Rybka is an anti-computer engine and that its results wouldn't be so good against human opposition. As far as I know it hasn't been tested against a super GM yet. |
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| Feb-02-07 | | capatal: capatal: <Chessgames.com Rybka Users>
We purchased Rybka 2.1c CD from The London Chess Centre with featured free 2.2 and Rybka 2.3 upgrades when available (with order code # included). Does anyone have specific Rybka link to obtain these programs for Fritz UCI? The Rybka links we have perused have not seemed to address these upgrades, so far. Thanks you for your efforts and any specific links or information you can provide. :) |
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| Feb-03-07 | | s4life: <Mind you, one could argue Rybka is an anti-computer engine and that its results wouldn't be so good against human opposition. As far as I know it hasn't been tested against a super GM yet.> As the depth increases and chess becomes solved over an increasingly larger horizon, such distinctions will become more and more meaningless and the notion of strength will become absolute.
It is not true though that Rybka hasn't been tested against a GM, there was a continental tournament where the strongest south-american GMs played, maybe a couple of years ago. It was the first Rybka version, but it didn't stop it from killing every GM in the field, except from one draw. Against a super-GM it hasn't yet though |
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| Feb-03-07 | | s4life: <dyoniseus> That game was truly something. What a spanking DF 10 got in that one. At some point black knights were really active and dominated the middle, but 10 moves later black's position was positionally lost. |
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| Feb-03-07 | | Dionyseus: <Capatal> Rybka works in the F10 GUI (Graphical User Interface) in UCI (Universal Chess Interface) mode. In your cd there should be something like Rybka 2.2.exe, simply browse through your Program Folder for the Chessbase folder, inside that folder you should see an Engines folder, and if you do not, make one. Inside the Engines folder, make a Rybka folder, and inside the Rybka folder place the Rybka 2.2.exe. Turn on Fritz 10 GUI, go to Create Engine, and find the Rybka 2.2.exe and choose it, and then click on OK. Now you can browse your engines list and Rybka should appear there. Enjoy. For an even better description of that process, with pictures, go here:
http://www.rybkachess.com/index.php... |
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| Feb-03-07 | | llauro: <<s4life>there was a continental tournament where the strongest south-american GMs played> I think s4life talks about Copa Entel 2006, played in march 2006. The crosstable is available here, at the official site (in spanish) http://ajedrez.123.cl/clasificacion... It is also possible to play thorugh the games and download them in pgn format (go to section 'Partidas') If my calculations are correct, as Rybka scored 9/10 and the average opposition was 2460 ELO points, Rybka's performance there was 2842. Note that the difference in performance is very high (average 380) and there were few games (10) so that performance could be not very reliable. (For instance, if instead 9/10, Rybka would score 9.5/10 then it would reach TPR 2971 but if 8.5/10 then only 2761) As it was played in march, the version could be 1.2 monoprocessor (hardware unknow). If we check CEGT site, 40/40 time control, we'll see Rybka 1.1 32bits 1CPU with an estimation of 2899, and version 1.2f around 2938. But that's against other engines. I think Rybka (probably Rybka 1.0 last beta or so on only 1 CPU) also played another tournament in South America in december/2005 and there the TPR was 2910 or so (could not find the site). |
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| Feb-28-07 | | square dance: i ran a couple of blitz engine matches the last couple of days. the first one was rybka 2.2n vs rybka 2.3 playing a "nunn match", which means that the computers play ten representative openings alternating colors for a 20 game match at 4'+2". rybka 2.2n won +5-2=13. in the next match i had rybka 2.3 play fritz 10 in the same nunn match, but at 2'+1" time controls. rybka won +14-3=3. ouch. btw, im running a single processor 32-bit os. |
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| Feb-28-07 | | SirBruce: <Dionyseus>, looking over your game, it seems to be the problem with Fritz was 12....Bd6. This is *not* in my Fritz 8 book, which would have played 12....Qc7 or c4. Perhaps there's an error in Fritz 10's opening book. In any case, Bd6 is a tricky move that complicates things to just the "right depth" where it doesn't look good at first, then if Fritz thinks long enough it looks better, but then the complications are just far enough out that it can't see far enough to see that evaluation drop again. The other problem is I think it found a weakness in Fritz's evaluation function, where it simply does not see 14. Nxh2 for white, instead thinking the best line is 14. Kxh2. My suspicion is that it's devaluing "knights on the edge" too much, espcially in an open position. It stays there for a good long while, too, only to become more powerful as the pieces move from the queenside to the kingside. Rybka is certainly strong, but that game in particular I think was the result of a bad opening book and perhaps a flawed evaluation weight. |
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| Feb-28-07 | | SirBruce: Sorry I meant 11... Bd6, etc. Just to confirm, I checked Rybka's opening book, and sure enough, 11... Bd6 is not in it at all. Rybka much prefers 11...Qc7 or c4. Bottom line - bad opening book move by Fritz. |
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| Feb-28-07 | | Tomlinsky: 11...Bd6 isn't in the Fritz 10 opening book either. 11...Qc7 and 11...c4 are though. Either the book was bypassed or the standard one wasn't used for whatever reason. |
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| Feb-28-07 | | amadeus: Interesting match, pawn odds: http://www.rybkachess.com/docs/RYBK... Rybka vs. GM Ehlvest (2610 Fide Rating), 8 games. Rybka has white and starts each game without one of her pawns. Dates: March 6-8
Play schedule: start around noon EST
Time Control: 45' + 10"
Prize: significant, but Ehlvest must win to get it
Method of play: live (in-person) games
Rybka hardware: QX6700
Rybka version: private anti-human version of Larry Kaufman
Opening book: private handicap book of Larry Kaufman |
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| Mar-01-07 | | square dance: i just ran another nunn match at 2+1 with the new rybka 2.3.1 beta vs rybka 2.2n and 2.3.1 won by one game. |
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| Mar-07-07 | | amadeus: Hmmm, 3-0 so far.
http://rybkaforum.net/cgi-bin/rybka... |
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| Mar-08-07 | | percyblakeney: In the pawn odds match against GM Ehlvest Rybka is leading with 4.5-1.5 with two games to go. |
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| Mar-08-07 | | ganstaman: Is Rybka just that good, or is Ehlvest not as good as I had thought? I'd like to see Rybka give Fritz 10 pawn odds and still win. That would be more impressive. Wait, can Rybka even beat Fritz 10 straight up? |
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| Mar-08-07 | | square dance: from 1-27:<Dionyseus: Rybka has just dismanted Deep Fritz 10 in a 6 game classical time control match by a score of 5.5-0.5, the machines that were used were identical to the one used in the Kramnik - Deep Fritz 10 match:
You can download the pgn and the commentaries here:
http://perso.orange.fr/lefouduroi/t...; |
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| Mar-08-07 | | percyblakeney: Ehlvest is no weak player, he won with black against Naiditsch in Aeroflot Open last month (even if he finished with -1) and was top 5 for a short while in the beginning of the 90's. |
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| Mar-08-07 | | csmath: Ehlvest getting beaten with pawn odds. :-))
I vaguealy remember Ehlvest being arrogant after losing to Zappa 3-1. I got in argument with Anthony Cozzy for letting Elhvest draw one game I thought Zappa should have continue to play. I am really glad to see Elhvest getting beating with pawn odds. |
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| Mar-08-07 | | amadeus: <I'd like to see Rybka give Fritz 10 pawn odds and still win.> If I an not mistaken, Rybka won 4.5 - 3.5 on a experiment ran by L. Kaufman. Other matches here: http://www.beepworld.de/members38/e... |
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| Mar-08-07 | | amadeus: Rybka 5.5 - 2.5 Ehlvest
His blog is very funny: http://blog.ehlvest.org/ |
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| Mar-08-07 | | ganstaman: Thanks for all the answers, everyone. I wrote that post just before running to class, so I didn't have time to look things up (well, I guess I could have just delayed my post until after class, but yeah). This may start to be reminiscent of Morphy. Didn't he eventually refuse to play chess if it wasn't an odds match? He thought he was just too strong for his competition otherwise. Has Rybka achieved that status now? |
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