Sudoku

What's the best thing to past time when you have to take optical density (OD) readings every hour throughout the night? It's too short of an interval to nap, too tired to read anything scientific, there's not a whole lot to surf on the net after a while...we solve Sudoku puzzles!!! I've been trying to solve the puzzle above for the past hour and still haven't gotten any closer to finishing any cube. This is the hardest I've done so far. I know I know..some of us could finish this in a minute or so but I just got started.

What is Sudoku? It is simply a number puzzle. As seen above, it has 9 large cubes with 9 small cubes within it. The goal of the game is to fill up all the boxes with numbers, so that every row, every column and every large cube has the numbers 1-9. It became really popular sometime end of last year but I did not realize it until I went to California. I first saw it in the airport bookstore..then at the Disney store...then the bookstores..and it was everywhere after that. When class started a few weeks ago, they started adding the Sudoku puzzle in the State News. That was it for me. I just had to try one and find out what's going on with the Sudoku buzz. My first one led me to the next..and the next..now, I even finds the puzzles online. Yup, it is that addictive. Try solving one and you'll get hook. The ones published in State News are short enough to last throughout my bus ride when I have to take the bus. But on nights like tonight, the harder ones are more tempting.

And there are soooooo many of them that it's amazing how it became so popular that fast. Check out these sites if you get hook on them like me...they have new puzzles everyday.

1. Online Sudoku
2. Downloadable Sudoku
3. Sudoku in pdf format
4. If you like a little challenge...

There's tons more!!! Gotta go get my next reading...have fun!