Derek Nalls wrote on Thu, May 22, 2008 12:13 AM UTC:
'If I were you, I would normalize all models to Q=950 but then replace
the pawn value everywhere by 85.'
Since this is what you (the developer of Joker80) recommend as optimum,
this is what I will do.
Are you sure that replacing any pawn values different than 85 points
after renormalization to queen = 950 points still renders an accurate
and complete representation, more or less, of the Scharnagl and Nalls
models?
At par of queen = 950 points, the pawn value in the Nalls model
is not represented as being only 92.19% as high as that in the Muller
model and the pawn value in the Scharnagl model is not represented
as being only 98.95% as high as that in the Muller model.
Thru it all ... If a perfect representation is not quite possible,
I can accept that without reservation.
__________________________________
'I don't think you could say then that you deviate from the
model as the models do not really specify which type of Pawn they use as
a standard.'
Correctly calculating pawn values at the start of the game (much less,
throughout the game) requires finesse as it is indeed a complex issue.
In fact, its excessively complexity is the reason my 66-page paper on
material values of pieces is silent in the case of calculating pawn values
in FRC & CRC. Instead, someone needs to read an entire book from an
outside source about calculating the material values of the pieces in
Chess to sufficiently understand it.
Personally, I am content with the test situation as long as Joker80
handles all pawns under all three models initially valued at 85 points
as fairly and equally as realistically possible.
I cannot speak for Reinhard Scharnagl at all, though.
________________________________________________
'The way you did it now would make the first Bishop to be traded of the
value the model prescribes, but would make the second much lighter.
If you would subtract half the bonus, then on the average they would
be what the model prescribes.'
Now, I understand better.
It makes sense.
[I am glad I asked you.]
Yes, I will subtract 20 points (1/2 of the 'bishop pair bonus') from the
model-independant, material values for the bishop under the
Scharnagl & Nalls models.
