Play Sudoku puzzles on your desktop. The object of Sudoku puzzles is to place the numerals 1 through 9 in a 9 x 9 grid so that each row, each column and each 3 x 3 grid contains each number one time only. You can take a look at the solutions to get the idea if you are new to Sudoku puzzles... Tracker Software :: sudoku :: to :: go :: tracker :: software :: games :: puzzles :: sudokutogo deluxe :: Sudoku To Go