Expert Sudoku
Free printable expert sudoku puzzles for serious enthusiasts — minimal clues and a single valid solution. Play, print, or download the PDF with its answer key.
Clues: 24
Click a cell, then type a number (or use the pad).
Frequently asked questions
Is the sudoku generator free?+
Yes. Generate unlimited sudoku puzzles and print or download them for free, no signup needed.
Does every puzzle have one solution?+
Yes. Each generated sudoku is guaranteed to have exactly one unique solution.
What difficulty levels are available?+
Five: Easy, Medium, Hard and Expert on the classic 9×9 grid, plus a gentle 4×4 version for kids.
Can I solve the sudoku online?+
Yes. Click a cell and type a number; the tool highlights conflicts, and you can Check your progress or Reveal the solution.
How do I print the sudoku?+
Use Preview & Download to save a US Letter or A4 PDF with the puzzle and its answer key.