Play Hard
Open the interactive large print board with this difficulty selected.
Play HardHard
Hard Large Sudoku is for experienced solvers who prefer the same accessible board but want fewer starting numbers and a longer solve.
Hard pages should not abandon the older-adult promise. The value is a tougher puzzle inside a clearer interface.
The board keeps the same senior-first interface: oversized cells, tap-first input, optional error checking, no timer, and local browser progress.
Hard Sudoku is a real player choice, not just a keyword variation. The live game and print page both support this difficulty level.
Open the interactive large print board with this difficulty selected.
Play HardOpen a clean printable puzzle sheet for this difficulty.
Print HardHard is best for experienced solvers who still want a readable large print board.
Yes. The print page supports Very Easy, Easy, Medium, and Hard puzzle sheets with separate answer grids.