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by chungy 1204 days ago
Impressive, I see one definite problem and a potential one:

* I had incorrectly stated the conditions of the Y grouping. The digits must sum up to a multiple of 7, rather than be a multiple of 7 by themselves. 0000007 and 0000016 are valid sequences, for instance, but 0000014 is not.

* The Z grouping probably has to be [0-9]. At least I've never tested non-numeric characters whenever I've installed Windows 95 (I usually type out 00195-OEM-0000007-00000 when I install it).