Penpa link: https://tinyurl.com/5xxmpmyx
Here's an aid for visualizing:
Solution code: The entire bottom 4x4 grid as if read (left to right, top to bottom).
on 2. February 2022, 19:52 by Octonal
There should only be one solution. What are you getting for your solution code?
on 2. February 2022, 09:24 by ElimGarak
Are you sure that this has a unique solution? Can't find any errors but solution code is not accepted.
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