Even More Sudoku:More Daily on-line games

Here are some more daily sudoku sites:

• Fingertime. Has moderately easy on-line versions.
• Sudoku.au. This site presents puzzles with four different levels of difficulty. It also has the a feature that allows you to put little possible numbers across the top of each square.

According to A Constrained Vision, a person who developed a computer programme to generate these games grossed over $1m in less than a year.