Guriddo (グリッド, Japanese for grid) is a free and competitive Sudoku alternative with daily challenges. If you enjoy playing Numbrix, Kakuro or Kenken style like number puzzle and seek a new tricky challenge, then you should give Stradoku a try.

If you have never played Stradoku before, read this with caution:

Stradoku is a highly addictive logic-based number puzzle. Similar to Kenken or Kakuro you have a 9x9 grid that you need to fill with numbers from 1 to 9. To increase the difficulty, rows and columns are additionally limited through black fields. But see for yourself!

If you are new to Stradoku, don't worry - we prepared an easy beginner’s guide for you. And always keep in mind, we warned you about its highly addictive nature.


Guriddo offers you:

- Everyday we release a new number puzzle (daily challenge)
- Track your solving time and compete against other players
- There are 5 different difficulties (easy to diabolical)
- Take a break from the daily challenges and select your own difficulty (coffee break)
- Packs with hand-selected puzzles (e.g. for beginners)
- Guide with solving strategies
- Profile with stats about your skill level & progress
- Add your friends and play with them together

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