Tuesday, December 06, 2005

sudoku (051206)

sudoku (051206)

It's Tuesday, so it's time once again for an easy sudoku.

The rules of sudoku: The puzzle board consists of a 9 by 9 grid, which is further divided up into nine 3 by 3 blocks. In each row, column, and 3x3 block, the numbers 1 through 9 each get written exactly once. The puzzle board generally starts with 18 to 30 of the cells in the grid already filled in. For those who need help, a short tutorial on how to solve sudoku puzzles can be found here.

To solve this puzzle, I suggest first saving the GIF on your computer. Then print it out (or copy it onto some graph paper) and solve it in pencil (or in pen if you're feeling bold); or, if you don't feel like using paper, then solve it using a graphics editor such as Microsoft Paint.

If you solve this puzzle, post your solution in the comments. The person who first posts the correct solution receives a prize: satisfaction at a job well done.

Update: Ben of NYC Nova Hunter got this one; the full solution is posted here.

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3 comments:

Ben C. said...

14m13s ... solution for upper left diagonal to lower left: 865491496

I never thought this was a way of determing the proper solution but it is used in the papers.

All the best.

Ben

P.S. - I just added the Space Blogroll to my blog at http://novahunter.blogspot.com

Ben C. said...

Should've read "solution for upperleft diagonal to lower right"

Ed said...

Well done, Ben. Thanks for adding the space blogroll to your blog.

Here is the full solution:

842 673 915
963 518 724
175 942 368

719 456 283
236 897 541
458 321 679

581 769 432
624 135 897
397 284 156