H. G. Muller wrote on Sat, Sep 29, 2012 06:43 PM UTC:
Indeed, the display of tables is still not fixed, after the overhaul of the
site broke it. I would not be surprised if something similar was possible
with Bishops and Nightriders, though. The important thing is that the
angles between the slider rays are small enough that the Kings can be far
enough apart. With Rooks and Bishops the pattern would only work if the
Kings were on adjacent ranks, checking each other.