The 3rd World Sudoku Puzzle Championship (WSC) is happening as we type in Goa, India.
There are links http://wsc2008.com/ on the WSC webpage to the Sudoku puzzles used for the Finals. The whole page has the same address so go to Downloads in the sidebar). In the last link ‘all rounds’ from the finals, note the time limits (6 regular Sudoku’s of increasing difficulty and 5 mini Sudoku’s in 35 minutes; 7 Sudoku variants and 5 mini’s Sudoku’s in 40 minutes).
Thanks to Leigh Anne for this great Sudoku puzzle tip. Happy Puzzling