Sudoku Generator

Generate playable Sudoku puzzles with difficulty levels, answer checking, solution reveal, printable board, and puzzle ID.

Generate Sudoku Puzzle

Puzzle #CFC44A4A Medium

36Filled Cells
45Empty Cells
0Mistakes
00:00Time
Select an empty cell and enter numbers using keyboard or number pad.

How to Play Sudoku

Fill every row, column, and 3×3 box with numbers from 1 to 9. Each number can appear only once in each row, column, and box.

  • Choose a difficulty and generate a new puzzle.
  • Click an empty cell and type a number from 1 to 9.
  • Use Check Answers to highlight mistakes.
  • Use Hint when you need one correct cell filled.