As mentioned in a previous post, solving sudoku puzzles is a great way to flex your mental muscles. Ever since I picked up the sudoku bug, I've tried to find free puzzle to do; from the free dailies to the multitudes of websites; but I tend to end up with stacks of newspapers and computer printouts.
Enter Iron Sudoku - the Iron Chef of the daily sudoku websites. No other matches the beauty and ease of use of this free site. Moreover, Iron Sudoku fosters a community, allowing you to berate mock tease chat with fellow sudoku'ers. I've made this part of my daily diversions (a new puzzle every day!), won't you join me?