Kropki

A Latin square with dots: white means neighbours differ by one, black means one is double the other.

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How to play

Fill the grid so every row and column holds 1 to n once.
A white dot between two cells: the digits differ by exactly one.
A black dot: one digit is double the other.
No dot: neither relation holds. That absence is a clue too.
Between 1 and 2 either dot may appear. Every puzzle has one answer.

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