Su Doku - Number Puzzle
From Wikipedia's SuDoku entry:
The aim of the canonical puzzle is to enter a numerical digit from 1 through 9 in each cell of a 9×9 grid made up of 3×3 subgrids (called "regions"), starting with various digits given in some cells (the "givens"). Each row, column, and region must contain only one instance of each numeral. Completing the puzzle requires patience and logical ability.
Wikipedia contributors (2006). Sudoku.
Wikipedia, The Free Encyclopedia. Retrieved 23:24, January 6, 2006 from
http://en.wikipedia.org/w/index.php?title=Sudoku&oldid=34126826.More information about Su Doku can be found at:
5ud0ku - A Su Doku Midlet for mobile devices
Check out the Sudoku J2ME game (midlet) for mobile devices, such as java enabled cellphones or smartphones and PDAs.
Full description, version information, jad/jar files and sources are available at
5ud0ku.
The user manual is located at
http://wintermute.de/wap/5ud0kuman.html