Rules for Urjo — a binary determination puzzle

Urjo is a logic puzzle where you use available information to deduce which spots are red and which are blue. Solve puzzles by following these rules:

  • Every row/column contain as many reds as blues.
  • Number indicates how many surrounding spots are of that color.
  • Adjacent rows/columns are different.

Fill all blanks with red/blue. Tap a blank spot to make it red, and tap it again to make it blue.

There is only one solution to an Urjo Puzzle. Can you find it?

Use Hint if you get stuck. Press Undo if you make a mistake.

Good luck!

Open Tutorial if you want to practice the three rules.

Open Tutorial
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If you are a publisher and you want Urjo Puzzles for your publications, do not hesitate to contact us by email at urjo@urjo.com.