Computer Chess Club Archives




Subject: Re: Very easy mate to solve.

Author: Heiner Marxen

Date: 09:51:34 12/25/01

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On December 24, 2001 at 19:46:41, leonid wrote:

>On December 24, 2001 at 16:27:29, Heiner Marxen wrote:

[big snip]
>>Otherwise I did not note anything unusual in Chest's statistics.
>>Name the missing info and I will try to provide it :-)

Hello again!

>I actually looked into all useful data of your program before even putting this
>positions here.

Oh, sorry.  I'll remember that, now :-)

> Was very surprise in finding that time of search for 5 moves was
>less that time for 4 moves. Your time for 4 moves was 0.11 sec and for 5 only
>0.05 sec.

Were that timing info lines from one invocation/run, or resulting times
from different invocations?  The former would be strange, the latter is ok,
since with so small times it may just be random inaccuracy noise.
Or is that repeatable?

> Also big difference in our time is due to some sudden jump in
>branching factor that happened in mine after move 6. Move 6 was still 1.5 sec.
>for my program

For this I have no idea.

>The most curious in this position was also the fact that it was not so much
>lowers specialised plies that gave you advantage but your branching factor in
>upper plies. Your time for 4 move was 0.11 sec, when mine was 0.05 sec.

So it is all about EBF, since your basic speed here is even better than mine.


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