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Subject: Re: Blue moves in Fritz book

Author: Gian-Carlo Pascutto

Date: 13:15:47 04/28/02

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On April 28, 2002 at 15:19:26, Alexander Kure wrote:

>A "blue" move omly disables the move to be played but does not mark the position
>as non playable.
>Eg.: After 1 e4 c5 2 Nf3 e6 white should not play 3 Qe2. But in the variation 1
>e4 e6 2 Qe2 c5 you want white to play Nf3 which would transpose to the same
>position. By marking 3 Qe2 of the first variation as "red" you also disable 3
>Nf3 of variation 2 becaus it leads to the same position. By marking 3 Qe2 of the
>1st variation as "blue" you do not disable 3 Nf3 of the 2nd variation.
>That's the magic ;-)

Thanks for the explanation. I wonder though, whether this is needed
from a game-theoretical point of view. i.e. shouldn't the program
never play into the second variation to begin with?

--
GCP



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