All *.zrf files (and related files) included are direct ports of the original releases commonly found at www.ZillionsofGames.com &/or www.chessvariants.com.
The set-up utilizes at least one of each differing standard chess piece. Similar liberties were taken, file-by-file, variant-by-variant: some were dropped if considered inadaptable for a half board.
Castling has been recoded; Queen-side offers a move-choice dialog, I didn't want to use both Castling sides to simply 'corner-in' the King.

A major Thank You goes to the Zillions Team and the many Programmers of their Zillions formatted Original Games for actually doing all the true work.
(thanks for the quick assistance, Dan).
Future upgrades to this release can be easily imagined; all works by other authors shall be publicly released with expressed prior consent.