> Depends. Do you plan on doing more than brute force? Having it > bulk copy them may not be that bad if it's all in one place, and > if you do it like that you have all the combinations that carry > forward to the next level and if you back out it undoes them all > automatically. >
No, I think doing something else then brute-force would simply be a waste of time (except for finding singles in which case you don't need to use a brute force solver right?) These are of course speculations, I'm not sure. >> Going even further I could even store a filled-in value as an >> array with one possibilities... > > As long as you can tell it apart for it to work, that's up to > you. > yes, that is indeed going to be the problem ...
