Puzzle rules
Trilia
Place 1, 2, and 3 once in every row, column, and outlined irregular region. Regions may have different shapes and sizes. Equal numbers cannot touch, even diagonally, and all remaining cells stay empty.
How to solve
Complete rules
Goal: Place 1, 2, and 3 throughout the grid. Rules: - Every row contains 1, 2, and 3 exactly once. - Every column contains 1, 2, and 3 exactly once. - Every outlined irregular region contains 1, 2, and 3 exactly once. - Regions may have different shapes and sizes. Any additional cells in a region remain empty. - Equal numbers cannot touch horizontally, vertically, or diagonally. - Different numbers may touch. - All remaining cells stay empty. - Given numbers are fixed.