Hell yeah, who doesn't love Sudoku? It's that great logic numbery game (see illustration at left).
I know I've quickly become addicted, but there are only so many puzzles printed each day (right now, I get three between The Hindu and The New Indian Express).
Thus, let us all applaud WEB SUDOKU! Use the keyboard, make pencil marks, and see how your solving time compares to others. Awesome, awesome, awesome.