I came upon Sudoku a couple of weeks ago, but I forgot to post about it back then. As the article explains, Sudoku is an addictive number placement game that seems to have regained popularitiy overseas recently, and it has started to reappear in the United States. The rules are fairly straightforward, but the puzzles can vary widely in difficulty. At the bottom of the article are several links to online or downloadable games; The Daily Sudoku and Sudoku-san are two that I've frequented. Don't say I didn't warn you...