How to print ALL optimal solutions?

[DougCube]

I notice that without additonal options, it usually prints a single (and I assume optimal) solution but sometimes it prints 2 or more solutions at the same depth (curious when and why it does this). But I want it to instead print all solutions of the optimal depth. I tried using "-c num" option but then get some suboptimal solutions in addition to optimal ones.

Is there some option to force it to print all optimal solutions?

[rokicki]

Howdy!

If you know the optimal length beforehand you can stop it from printing suboptimal solutions using the --maxdepth option.

With the -c option, sometimes you get more than you asked for if you multithread, because I don't actually not print a solution when it would be too many since maybe that solution is actually useful and I hate to throw away work done. But if you think it's better than I go ahead and make the -c strict, I could do that. (There's no reasonable way to stop a thread that's searching, so sometimes a thread finds a solution after a previous one has been found and before that thread realizes it's time to stop searching.)

I can definitely see how "all optimal" might be useful and it's likely easy enough to add . . .

-tom

On Sun, Nov 24, 2024 at 10:44 PM DougCube @.***> wrote:

I notice that without additonal options, it usually prints a single (and I assume optimal) solution but sometimes it prints 2 or more solutions at the same depth (curious when and why it does this). But I want it to instead print all solutions of the optimal depth. I tried using "-c num" option but then get some suboptimal solutions in addition to optimal ones.

Is there some option to force it to print all optimal solutions?

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[DougCube]

Yes, I do think that would be a really valueable feature to add. Hopefully not too difficult to do. In addition to throw away solutions in threads that returned a suboptimal solution.