American wins Sudoku World Championships in Prague

The Sudoku World Championships in Prague have been won by an American, Thomas Snyder. The final was attended by Czech President Vaclav Klaus, who said he completes a Sudoku puzzle every night before going to bed. No Czechs made it to the final, though the Czech Republic did come third in the team category. Some 140 contestants from 31 countries took part in the Sudoku championships, which were held for the second time this year.