Today’s Mac timewaster is Dracosoft’s Christmas Sudoku. I’m not usually a big fan of Sudoko, personally. I don’t need to spend my free time looking at numbers in a grid. Isn’t that what Excel is for? The folks at Dracosoft, though, replaced the traditional numbers with colorful Christmas icons. That I can get into. If you’re already into Sudoku, the three levels of gameplay should provide hours of fun. If you’re not hooked yet, this may just be the thing that drives you over the edge into obsession. The price tag is $5.99, with a one-hour free trial.