Author: Sandro Necchi
Date: 03:29:45 01/01/06
Go up one level in this thread
On January 01, 2006 at 06:20:03, JNoomen wrote: >On January 01, 2006 at 04:44:52, Majd Al-Ansari wrote: > >Hi Madj, Hi Jeroen, > >Interesting observations, please let us know about your analysis! Concerning the >book questions: > >A) Indeed I have seen that Fruit doesn't like the Fritz 9 book. When I let Fruit >play with this book, the results went down sharply by around 15%. > >B) There will be a tuned book for Rybka quite soon. Maybe you can do the >tournament again with all engines using their own books? > >Best wishes for 2006, are you able to/willing to let me know under which GUIs the book you will make one will be able to use? > >Jeroen Ciao Sandro > > > >>I have just finished a 300 game tournament with the top programs at 5 min + 3sec >>and I have to say I am extremely impressed with Rybka. I will post highlights >>of the games as soon as I finish my analysis of all the games. Rybka came way >>out on top with Shredder and Fritz 9 comming way behind with Fruit at the >>bottom. This match might have been unfair for Fruit since book used was the >>Fritz 9 book. What is very impressive is that Rybka was able to win so easily >>even though it has HUGE gaps in some endgame knowledge. Mind you it can play >>some fantastic endings and beat the best of the best in some endgames. But in >>some endgame positions it plays less than a 1200 elo player. I am sure that >>this will be easily fixed especially since a superb source such as Fruit 2.1 is >>available. My first impressions about Rybka is that with a little more endgame >>knowledge, a specially tuned book and a little better time management, Rybka >>could be around 50 go 100 elo points even stronger. I will post why I think >>that as soon as I finish my analysis (I am checking all 300 games). The most >>notable thing I noticed is that Rybka plays so fast yet sooooo STRONG. The >>other engines are struggling to figure out the positions yet Rybka seems to play >>effortlessly and accurately. I remember Kramnik mentioning that computers are >>good at searching but are terrible at searching in the critical lines. I think >>Rybka is exploiting this somehow. The way it pushes pawns and plays unbalanced >>positions is truly something that will impress even the most seasoned super GM. >>It almost seems like a super GM is watching over and telling Rybka which >>critical lines it should search instead of wasting cpu cycles on the wrong path. >> If it doesn't find a quick finish through search or things are unclear, it just >>adds another move that intuitevely seems strong without really going through all >>the consequences of the move. Somehow it has the intuition to just load more >>pressure without really calculating till a huge plus. >> >>I would like to say that Fritz 9 seems to best the most mature engine. It >>immediately realizes a position is drawn while the other software programs think >>is won (Rybka is especially notorious for that). Shredder is also a very well >>rounded program and is extremely strong and I think with a better tuned >>evaluation will be even stronger. Fruit 2.2.1 my previous favourite is also a >>fantastic engine but seems to play really poorly in positions it does not like >>(it needs a tuned book to perform well). It is just that Rybka is playing a >>different type of chess that are just not understandable to the engines out >>there today. >> >>If you are impressed with Rybka now, let me warn you .... you ain't seen nothing >>yet!
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