The last full month of summer. Make the most of it, starting with these puzzles.
Pick your difficulty level, then solve online or use the print button for a clean, print-ready 9x9 version. Print at 100% and it will fit perfectly on both US Letter and A4. Today’s five puzzles are free to play or print, no account needed, and always ad-free.
Not certain which level to go for? Our five levels run from Casual to Diabolical, each one rated using the Sudoku Explainer (SE) system.
The full puzzle archive, back to January 2026, is available to Sudoku Solvers Club members.
