You can solve the puzzle using the number + arrow keys, or the mouse. Use shift + number to toggle guesses, the space bar to clear a cell, and 'backspace' for undo. Press '=' to highlight the number in a cell.
Click on the date to the left of the puzzle to do older puzzles.
These Sudoku puzzles were created using Mogens Kjær's Sudoku generator.
You can also solve the puzzles on the iPhone/iPod Touch/iPad and the Kindle 3.
All puzzles published on this site are © Patrick Min.