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Up Topic Rybka Support & Discussion / Rybka Discussion / could it be said Rybka Human is more positional?
- - By diskamyl (**) Date 2008-08-09 11:03
than the other versions, the default and dynamic?
Parent - - By Vasik Rajlich (Silver) Date 2008-08-09 16:18
This version does emphasize static factors more than the default, this is one of the differences.

Vas
Parent - - By diskamyl (**) Date 2008-08-09 18:05
I had read that, but couldn't tell if the game produced would be more positional. You answer seems like it's a yes :). Thanks.
Parent - - By Stephen (*) Date 2008-08-09 21:00
Hi diskamyl,

I think you misunderstood Vas. He wrote, "This version does emphasize static factors more than the default, this is one of the differences." That doesn't mean that Rybka 3 Human is more positional. By the way, please define positional. Your writing suggests that positional means less aggressive, while I think it instead emphasizes the technical chess aspects more. After all, when the technical aspects warrant, an attack is justified purely through static considerations.

Positions are either dynamic or static. Vas merely stated that Rybka 3 Human emphasizes the static factors more. What does that mean? It's possible that Vas meant that the Human version gives less value to dynamic factors (e.g. mobility and King safety) while thus giving more to static factors (e.g. space and pawn structure). As a result, a Dynamic version may elect to play for highly mobile pieces that merely shuffle back and forth while the Human version accumulates superior pawn structures and space,  so it attacks more meaningfully. But, I'm only speculating since I'm a computer dummy. :)

That said, the Human version may indeed generally play less dynamically than the other two...but not necessarily. I think I read too that Vas and/or Larry speculate that the Human version may be the strongest one, but at longer time controls.

All the best,
Steve
Parent - By Vasik Rajlich (Silver) Date 2008-08-10 07:07

> It's possible that Vas meant that the Human version gives less value to dynamic factors (e.g. mobility and King safety) while thus giving more to static factors (e.g. space and pawn structure).


Yes, exactly. This is one difference between Human and Default, although it's not the only difference.

Of course, we can debate what exactly "positional" means. I would say that emphasizing static factors relatively more is a big part of playing positionally.

Vas
Parent - By PaulM Date 2008-08-09 18:49
My impression, after playing a few quick games with Human, is that it's more careful than R232a or most other programs.  R232a seemed more aggressive and more likely to beat me quickly, but also subject to over-extending occasionally and getting a lost position.  Human seems like it's not interested in beating me quickly, but wants to ensure it ALWAYS wins eventually.  That sounds like Vas's description of emphaising static factors more - less likely to throw caution to the winds.
Up Topic Rybka Support & Discussion / Rybka Discussion / could it be said Rybka Human is more positional?

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