Puzzle rules
Tectonic
Fill each outlined region of N cells with the numbers 1 through N exactly once. Equal numbers cannot touch one another horizontally, vertically, or diagonally.
How to solve
Complete rules
Goal: Complete every outlined region. Rules: - A region containing N cells must contain each number from 1 to N exactly once. - Equal numbers cannot touch horizontally, vertically, or diagonally, even when they belong to different regions. - Given numbers are fixed.