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Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka 4 playing style compared to Rybka 3 and others.
- - By morphyzen (**) [us] Date 2010-07-23 14:21
Would it be accurate to call Rybka 4 style as aggressive and dynamic especially with respect to Rybka 3. I feel its endgame play especially rook pawn endings are superb.
When observing its play against the other ** engines, I noticed that it can take a small endgame advantage and convert with ease. Rook pawn endings. During many endgames it marches its king right into the enemy camp -- i have never seen other engines do this that often.

Has anyone wrote a review of Rybka 4 describing its style of play and comparing it to others?

--- of course it would help if the muli-pv bug was fixed but otherwise it is a great engine.
Parent - - By Graham Banks (****) [nz] Date 2010-07-23 21:31
It doesn't seem to worry too much about having a loose kingside, that's for sure.   :wink:
Parent - By NATIONAL12 (Gold) [gb] Date 2010-07-23 22:12 Edited 2010-07-23 22:15
i am very happy with R4 esp in corr chess.:smile:noted your point on defense.i just overule it.terrified to find out if R4 is right.certain it is not.
Parent - - By Labyrinth (****) [us] Date 2010-07-24 12:09
I'm under the impression that R4 is substantially more dynamic and speculative than R3.

I don't think there is so much (as much anyways) room for style at these insane strength levels though. Engines at this level have to play correctly in the vast majority of positions, and correctness probably has no distinct style.
Parent - By Athinira (**) [dk] Date 2010-07-25 04:27
As long as computer chess has limited processing power, there will always be room for style. Engines still have to play based on analysis of a limited number of positions, which is further reduced by search (which is a product of evaluation). Keyword here is "limited number".

Chess engines show off their style even in long TC tournaments with a huge availability of processing power.
Parent - - By turbojuice1122 (Gold) [us] Date 2010-07-25 14:11

> correctness probably has no distinct style


When there are multiple correct moves in many positions, this is exactly where style comes into play. :-)
Parent - - By theoak (**) [us] Date 2010-07-25 16:56
when there are many correct moves in a position, the most correct one is the one that leads to the final result in less number of moves. So style, in that sense is just a flaw. It is this flaw that makes >95 % of chess fans out there like chess more. :cool:
Parent - By turbojuice1122 (Gold) [us] Date 2010-07-26 05:38
But most positions in high-level games are drawn positions, so those options are all drawn options.  Surely it wouldn't be correct in many situations, especially when trying to win by having the opponent make a mistake, to play the move that draws most quickly.  Style comes in with trying to play the move that best puts the rest of the game into the type in which that particular style tends to play well.
Parent - By titanium cranium (***) [us] Date 2010-07-24 15:21
I can't say much about style, but my first CC win against a real, live GM is about to happen using R3, not R4. So, in terms of ELO or strength, I can't measure any difference.
Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka 4 playing style compared to Rybka 3 and others.

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