You can download my Minesweep from http://www.yqcomputer.com/
to edit a few things to make it Iyonix compatible:
1) Comment out (or delete) all lines in the !Run file that refer to the
sound modules EXPLOSION and WellDone.
2) Find the two occurrances of EXPLOSION and WellDone in !RunImage
(should be calls to ChannelVoice) and replace the string EXPLOSION
and WellDone with the strings 9 and 1 respectively.
Then my Minesweep should work without any problems and quite fast on
the Iyonix. And in addition to normal "find all mines" mode it has the
"find safe way" mode.