Play Only 1 color per line Online Free

About This Game

Only 1 Color Per Line strips sudoku to a single elegant constraint: fill the grid, but never place the same color twice in any line. No numbers, no boxes, no regions — just rows and columns that each demand complete color uniqueness. That simplification is not a diminishment; it is a clarification. With only one rule to hold in your head, the entire game becomes forward planning: every placement eliminates a color from its future row and column, and good players think in terms of what a move forbids three cells ahead. Blank cells arrive as fixed obstacles that cannot be changed, which forces detours around them. Quietly deeper than it looks. Free to play online, no download.

How to Play

Fill every cell of the grid so that no color repeats in any row or column — analyse the board properly before you place, because each color can appear only once per line. Work around the fixed blank cells that cannot change. There is no timer, so reason it through: the placement that looks fine now may be illegal three cells later.