Sudoku

Sudoku

Easy
Medium
Hard

Multidoku

Gattai-3

Easy
Medium
Hard

Twodoku

Easy
Medium
Hard

Sudoku Variants

Sudoku X

Easy
Medium
Hard

Sujiken

Easy
Medium
Hard

Vudoku

Easy
Medium
Hard

Windoku

Easy
Medium
Hard

Other logic puzzles

Kakuro

Easy
Medium
Hard

Puzzles for kids