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 Privacy policy: https://guriddo.app/legal/privacy Terms of use: https://guriddo.app/legal/tos