I invented a game, a hybrid of sudoku and football (soccer). Like sudoku it's something you do on paper with a pencil, but since yesterday, there's a flash-based online-version here:
http://www.fudoku.de/
The interface is in German, so here's some info in English for all you non-german speakers:
Fudoku rules are extremely easy: Fill balls into the empty squares (by clicking into the squares) so that there are exactly 3 balls in each row, and 1 ball in each column. The balls must not touch (the 8 neighboring fields of a ball must not contain another ball), and the fields with a hand are taboo. And, of course: There's only ONE solution.
You can remove a wrong ball by clicking on it.
To take part in the competition you have to login.
You can select one of 3 levels of difficulty.
"START" will start a new game, "LÖSUNG" means solution.
Alles klar? Then Good Luck and Enjoy!
XYplorer Beta Club