Daily 9x9 puzzle

Free online Sudoku, one puzzle at a time

Start a daily Sudoku without signing up. The daily difficulty changes by date, and your progress is saved in this browser.

Select an empty cell, then enter a number.

Easy to hard

Choose a Sudoku level that fits

After the daily puzzle, keep playing unlimited practice puzzles by difficulty.

Beginner-friendly puzzles with more given numbers, ideal for learning the rules and finishing quickly.

A balanced level for practicing notes, row and column checks, and hidden singles.

Challenging puzzles with fewer clues that reward careful candidate comparison.

Each row, column, and outlined 3x3 box must contain the digits 1 through 9 exactly once.

Look for a row, column, or box where a number can go in only one cell. Use notes when a cell still has several candidates.