Sudoku Patterns

This page displays some interestingly patterned Sudoku puzzles.

Due to the large numbers of 17-hint puzzles that I have collected, they have been moved to a separate page with more suitable navigation.

17-hint puzzles

Each puzzle is guaranteed to have a unique completion, but may (or may not) need backtracking to solve.

If you want to play with these (ie actually solve them), then I have a very simple-minded helper application in early development. Just click "transfer to helper" to activate it.

Are these puzzles any good? In other words, would real Sudoku players enjoy playing them? Let me know on

or post comments on the Sudoku forums.

Puzzles in the group

Download them all