Train your brain, keep your mind active!

The challenge:
Sudoku is such a deceptively simple puzzle: the challenge can be expressed in one sentence. Given a puzzle in 9x9 box with few known numbers, try and fill in the remaining squares with numbers 1 to 9 such that each row, column and 3x3 box contain all the numbers 1 to 9 without duplication.

Features:
• Daily Challenge, complete Daily Challenge to collect stars!
• Statistic, track your progress, challenge yourself!
• 4 difficulty level supported, good for any beginners and advanced players.
• Over 20,000 puzzles and each puzzle has an unique solution.
• Struggling to solve the puzzle and getting nowhere, try using hint provided.
• You can take notes to track possible entries and your notes are automatically updated.
• Dark mode available, you can have fun on lights out.

Challenge your brain with Sudoku now!