' discover.txt - print blueprint, play nothing.
'
' The review names the slicer on level 4 screen 12 and the two on level 5
' screen 24 as the ones that stop those levels being finished.  No game data
' leaves the board, so where they actually are, and what is either side of
' them, has to be asked of the board itself.
FIND 4 18
SHOW 4 12
FIND 5 18
SHOW 5 24
