Only 1 color per line
Played 2 times.
About Only 1 color per line
Think sudoku, but swap numbers for colors. Only 1 color per line asks you to fill a grid so that each color shows up once in every line, which sounds easy until the grid starts to fill and your options shrink.
It is a pure logic exercise, with no time pressure and no tricks. You study the squares already placed, work out which colors cannot go where, and gradually narrow down the answer. Players who like deduction puzzles will settle in quickly, and newcomers will find the idea easy to grasp. The portrait layout suits a phone, and the browser version also works on a computer with a mouse.
Game details
| Genre | Puzzle |
|---|---|
| Controls | Mouse or touch |
| Platform | Browser, phone and tablet |
| Cost | Free, no download |
| Screen | 600 x 800 px |
How to play Only 1 color per line
- Look at the grid and the colors already placed.
- Tap or click a square to put a color in it.
- Make sure no color appears twice in the same line.
- Complete the entire grid without repeats.
Tips for Only 1 color per line
- Start with lines that already have the most colors filled in.
- Eliminate impossible colors for a square before guessing.
- Check both directions for each square, since conflicts can come from either side.
Frequently asked questions
Is Only 1 color per line free to play?
Yes. Only 1 color per line is free, runs in your browser, and requires no download or sign-up.
How do I play Only 1 color per line?
Tap or click squares on the grid to place colors, on a phone or with a mouse on a computer.
Is Only 1 color per line like sudoku?
Yes, in spirit. You fill a grid by logic, but with colors instead of numbers, and each color may appear only once per line.
More to play: Puzzle games · Brain games · Sudoku games
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