Date: 19 July 1980 1524-edt From: Bernard S. Greenberg Subject: :cube feature To: CUBE-LOVERS at MIT-MC Ok, everybody wants a way to tell :CUBE "I have a cube like so and so, solve it". The reason I have avoided doing this (other than laze) is that you may specify a non-reachable state. (Duplicate cubies, or purple faces, etc. are easy to check for). I am not convinced that there is any better or faster check for an inconsistent/unreachable cube than trying to solve it and blowing out: lest we find such a check (other possibility: run the program once silently and once loudly; if the first time fails (no, i will not make it list all cubes it cant solve) give an error), all internal breakpoints become user errors. The second issue is what is the best language to specify a configuration in? Comments?