The oku Experience

🧠 Engaging Puzzles

Immerse yourself in a world of thought-provoking puzzles that cater to all skill levels. From beginner-friendly grids to mind-bending challenges, we’ve curated a diverse collection to keep you entertained.

🌐 Anytime, Anywhere

Take your Sudoku journey with you wherever you go. Our app is designed for seamless compatibility across devices, ensuring you can enjoy a satisfying Sudoku experience whether you’re on your phone during a commute or relaxing at home on your tablet.

🚀 Constant Innovation

We believe in the continuous improvement of your Sudoku experience. Our team is dedicated to introducing innovative features, updates, and improvements regularly, so you can always look forward to fresh challenges and exciting enhancements.


How to Play oku

The goal of Sudoku is to fill a 9×9 grid with digits so each column, row, and 3×3 section has numbers 1-9. Initially, some squares are filled.
Use logic to complete the grid, avoiding:

  • Duplicate numbers in any row
  • Duplicate numbers in any column
  • Duplicate numbers in any 3×3 grid

oku Tips

Mastering this puzzle can seem daunting for beginners, but fear not—we've got tips to boost your skills.

  • Tip 1: Identify rows, columns, or 3×3 sections with 5 or more numbers. Fill empty cells by trying unused numbers, often revealing the only possible position.
  • Tip 2: Visually divide the grid into 3 columns and 3 rows. Spot columns or grids with 2 of the same number; logically, the 3rd copy must be in the remaining 9-cell section. Explore each position to locate the missing number. Happy Sudoku solving!

Now that you know a little more about Sudoku, play and enjoy this free game.