Well, I do not want to talk that much on Janus Chess here. But the
difference is more subtile, e.g. the a-side castling brings the king to
the b-file instead of the c-file.
When I have understood your intentions right (I am not sure) you want to
know something on the filtering of those 48.000 basic positions. Well,
the
idea is, that having such a big bool of randomized targets, it would be a
good idea to kick off all of them which could have the potential to be an
argument that the CRC would produce unfair or unstable positions. So
reducing to about 21.000 positions without undefended pawns will
nevertheless leave back a huge number of possible starting arrays, which
might be sufficient for the current century.
Well, I do not want to talk that much on Janus Chess here. But the difference is more subtile, e.g. the a-side castling brings the king to the b-file instead of the c-file.
When I have understood your intentions right (I am not sure) you want to know something on the filtering of those 48.000 basic positions. Well, the idea is, that having such a big bool of randomized targets, it would be a good idea to kick off all of them which could have the potential to be an argument that the CRC would produce unfair or unstable positions. So reducing to about 21.000 positions without undefended pawns will nevertheless leave back a huge number of possible starting arrays, which might be sufficient for the current century.
Reinhard.