Su Doku

General

• Introduced to Perplex City by Jamie Fishslim
• Is an Earth-based puzzle game which started appearing as a feature in the Times newspaper, and has since gained quite a bit of popularity.
• The object is simple: Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9.
• Please note, the game itself is quite Earthly (and so, OOG).

Sources

• Times Homepage: http://www.timesonline.co.uk/section/0,,18209,00.html
• Source of puzzles and references: http://www.sudoku.com/

References

• Perplex City Sentinel Articles:
  • article, 17-JUN-05 "View from Earth: Defending Earth" (link)