Follow this link to get 20 free sudokus, these are hard so hopefully should give you a challenge

If that taster has whetted your appetite we also have 1000 Hard Sudokus for only $2

An excellent and fun resource for kids and adults! Hours of entertaining activity.

This is 1000 Hard Sudoku puzzles VOLUME 1- All new collection of Sudoku puzzles.

1000 Hard Sudoku Puzzles & Solutions
Large Standard 8.5″ x 11″ pages

– Print at actual size (8.5″ x 11″ | US Letter) – Recommended
– You choose the type, weight and size of paper – Print as many copies as you like

– 8.5″ x 11″

Files Included:
5 x ZIP File (5 x 200 Hard Sudoku Puzzles PDF & 5 x 200 Hard Sudoku Solutions PDF)