tye,
I said the balls are identical in appearance, I didn't say that there wasn't anyway of keeping track of which ball was which. A human could do it by keeping the groups separate when not being weighed and always put them on the balance the same way, let's just assume your code can too via array indices, hash keys, or method X.
This isn't a Perl6 challenge. As I said, All solutions, to include Perl6, are welcome. I understand that it is a bit of work for no immediate tangible reward so don't worry about not offering or attempting a solution-generator. Something to think about on a rainy day (-;
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