2: If I make the move before the opponent, then after he moves,
nothing happens and I have to make it again. No, I don't get the
premove highlights.
In testing this to check on question 2, it appears to be working now
(with highlights). I didn't change anything that I know of. So
forget it for now and if I see it again, I'll bring it up again with
more information.
1: Both winboard and xboard.
Other people have complained about premove too, but if there is a bug
it has proven very illusive.
For me and Arun it aways seems to work. I did find a bug in WinBoard,
(introduced by myself when
I fixed the promotion popup, because I did not properly understand the
premove logic at that time),
which I fixed before the 4.4.0 release. I never touched this part of
the code for XBoard; it still suffers
from the promotion popup appearing on moves that are illegal no matter
what you promote to.
One thing is sure, though: if you don't see premove highlights, no
premove has been entered.
In this case it would be interesting to know if the entering process
went astray when entering
the from square or the to square. Normal behavior is that when
clicking the from square it gets
a normal highlight, which then turns to the premove highlight color
when you click the to square.
Of course you can also drag and drop a piece; in that case the premove
highlights should appear
on both from and to square after you drop the piece. (It would also be
relevant to know if any trouble
you experience would occur on drag-drop or click-click moves.)