My friend Jamie just released his second simple online game: Iron Sudoku (his first is the ever-addictive Babble). Jamie is also the guy behind the well executed Giftbox. If you’re hooked on Sudoku, here’s your injection.

Iron Sudoku is a friendly community of Sudoku enthusiasts. A new puzzle is made available every day, and players then have 24 hours to complete it. Iron Sudoku isn’t about trying to complete puzzles quickly - it’s about a bunch of people getting together every day and chatting and having fun while doing a Sudoku puzzle.

Now go waste some time, will ya?