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Subject: Re: Depths equivalences

Author: Thorsten Czub

Date: 13:23:19 04/20/98

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On April 20, 1998 at 15:33:57, Christophe Theron wrote:
>Any volunteer to help the understanding of this topic? Thorsten?
>Fernando? Enrique? Torsten? ... ... ...
>
>
>    Christophe

Still I believe you make a mistake relating genius depths.

My old Richard Lang program ROMA is often only doing M2 searches.
This cannot be real !

It has an 68000 CPU running 12 Mhz and I cannot believe that this
program (assmbler) is only doing brute-force 2 plies !!
Also with M1 Sn it does a better search and has huge main lines.
No -
Genius uses the Mx Sy in a different way than other programs.

M is search-brute-force
S is search-depth with extensions/captures etc.
but x only 2 ?????
and the main line 5 or 7 or more plies and accurate ?

The Richard-Lang PC-software does not give us relevant material to find
out about. IMO we can only study the 680x0 machines because here Richard
is PURE and not hiding anything since it was so early nobody discussed
it heavily, like now.

IMO we should make a 40/120 game with my Mephisto ROMA and i write down
main-lines, evaluations and search-depth and
we try to replay with genius and you will see:
the 2 values genius offers us (M and S) or 6/18 is not what e.g. The
King offers with 3/7. It is not 6 plies (before extensions)/(after
extension).

Mephisto Roma was IMO the best positional program he ever had.




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