Maybe most of the software is ok with it. The smartboard manual is pretty clear about that each piece has its own unique frequency. And the R30 manual mentions you need to play with a different piece if the queen is not available. (in other words, R30 did not come with 2 queens per color)

Does anyone have the DOS version of the smartboard testing program?
The one mentioned in this manual: http://isabelle.zanchetta.free.fr/TascPCUS.pdf
*edit* ok, it's over here: https://web.archive.org/web/20030212...nloadable.html

There's also smartmon, a Windows version, but that doesn't test as much. Here's a MAME screenshot.