A) Sorry for not having accomplished to update the CRC content here.
B) There is a first public beta of Smirf (about 1.3 MB), unrestricted
until 2005/06/30. Of course this chess program is subject to further
improvements: http://de.geocities.com/rsmuenchen/
The program should be handled intuitively. But also notice:
a) the board could be turned by clicking on a corner of the board,
b) in edit mode castling rights easyly could be switched by clicking the
file letters near the involved rooks. This simplifies a consistent
management of castling rights especially with Chess960 positions (maybe an
idea for Arena),
c) you will find possibilities to select how move possibilities should be
shown or not in the help menu,
d) double clicking on a move of the list of possible moves will show that
move and preselect it,
e) double clicking on a move of the game list will reposition the game to
the related situation.