I'm absolutely addicted to sudoku!!!
This past spring I found a news article describing what a hit
it had become in England- included was a sample puzzle.
I WAS HOOKED IMMEDIATELY.
At that time, the only place to find more puzzles was on the web.
Luckily, however, the craze has caught on over here as well, and
my local newspaper now publishes a daily puzzle. Quite a few sudoku books out now as well!
Now I have to go try the puzzle physics linked to....