Author: Albert Silver
Date: 05:43:13 01/15/06
Go up one level in this thread
On January 15, 2006 at 02:07:06, Marc Lacrosse wrote:
>>
>>Lacrosse's analysis showed above all that in the 87 positions he tested, that
>>Shredder 9 and Rybka scored 57% given 10 seconds, and Fruit and Toga and company
>>are much weaker with so little time, and thus much weaker in blitz.
>
>>
>> Albert
>
>Just a little point, Albert.
>
>What my little experience shows is not an argument for telling that engine A is
>better or worse than engine B at faster or slower time control.
>
>What I precisely did is the following :
>let say :
>- engine A solves "x" positions in 180 seconds and
>- engine B solves "y" positions in 18o seconds.
>I recorded:
>- what percentage of "x" engine A had already solved after 10 seconds
>- what percentage of "y" engine B had already solved after 10 seconds
>
>So each engine is compared at 10 seconds with the number of positions that it
>will solve _itself_ at 180 seconds
>
>So when I record that Rybka has a 57% score and Fruit a 39%, this does _not_ say
>that Rybka is "stronger" or "weaker" than Fruit, and we could have a much weaker
>1800 elo engine getting a 80% (or a 15%) score in the same test.
>
>What the little test tends to show is just that rybka has already shown 57% of
>its own analysis capacity at 10 seconds whereas Fruit has a larger margin of
>improvement (compared with itself) when given a larger time control.
Actually, it doesn't even show what you suggest, that Rybka has already shown
57% of it's capacity in 10 seconds, and as a consequence I'm afraid your
conclusions are incorrect.
The positions you tested with have definite solutions I presume, thus once that
solution is reached there is no room for improvement. How can you claim that
Rybka cannot improve its analysis when the positions you gave it cannot be
improved upon after the solutions are found? In other words, Rybka, nor any
engine, CANNOT improve the analysis after it found a solution in 10 seconds
because there is no improvement possible. Mate is mate, and a win is a win.
Albert
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