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Subject: Re: What now? will we be buying Shredder etc, or Hydra?

Author: Jonas Cohonas

Date: 00:41:45 07/01/05

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>The Hydra that beat Adams is probably $10,000,000.00 since it has a giant pile
>of custom hardware and software.
>
>If you are considering buying it, then you are quite a wealthy hobbyist, I would
>think.
>
>I expect that they may eventually produce PC boards that play at a fraction of
>Hydra's current strength.

If we consider that Hydra probably peaks at 200 million nodes/s and the average
speed is say 150 million nodes/s, then if we remember that doubling of speed
adds 30 elo points in long games;

If i remember correctly, then Brutus was running at 20 million nodes/s (peaking
at 30 million nodes/s) on a dual machine, so if we do a a little math here we
have:

150 divided by 2=75, 75 devided by 2=32.5 which means that Hydra on a regular
dual running 20 million nodes/s would be roughly 80 elo weaker than the beast
they had playing Adams.

If we say even that doubling of speed gives you 70 elo points it would still
only be roughly 160 elo weaker (at that time control, they used in the Adams
match).

Considering that Hydra running 150. million nodes/s is rated 3100+ then it would
still be a lot stronger than your average pc program.

Is this fairly accurate or am i way off?



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