Following Veldhuis, I am asking if somebody knows the reason for which it exists 2 versions of the Virtuoso corresponding to 2 different model numbers?
http://www.schaakcomputers.nl/hein_veld ... rtuoso.pdf
I have the the 411 and the 412 models.
I believe that the 412 is rare.
Externally, they are different by the color of the board and by the lettering. However, these external differences are probably not enough to justify the change of model number.
I am intrigued...
Maurice
The 2 versions of the Virtuoso
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