[Retros] Add units, 22nd update

[Alain BROBECKER]

Dear retro friends,

As usual you can find the latest version of the
booklet here:
http://abrobecker.free.fr/chess/addunits.pdf

+1RA (now only 12 pieces)
-N1RA

Best regards,
Alain

Alain Brobecker (abrobecker at yahoo.com) |_  _  _ |_
http://abrobecker.free.fr/             |_)(_|(_|| ) of  Arm's Tech