Sudoku Collection contains printable Sudoku and online Sudoku puzzles with various
levels of difficulty from beginner to expert plus Big Sudoku and Giant Sudoku puzzles.

There are also Alpha Sudoku puzzles, a Daily Sudoku and Sudoku puzzles for Kids.

The rules of Sudoku are simple. Place a digit from 1 to 9 in each empty cell so

every row, every column and every 3x3 box contains all the digits 1 to 9.