The afm of the packages skaknew and enpassant are not
correctly installed. Instead of the .afm there are .
afm.gz in the folders. YAP then can't find the afm and
not make the fonts:
ps2pk: AFM file SkakNew-Diagram.afm not found!
Logged In: YES
Fixed: ps2pk can read compressed AFM files. This was broken
in the 2.5 series. The new ps2pk version will be available
in a couple of days.