The Daily Bile is running a week of particularly challenging sudokus. Yesterday’s involved using the digits 1-9 once only on each diagonal, which was fun, and today’s is an Saturday Independent style super sudoku.

Thanks to a rather too obvious web page naming convention… tomorrow’s is two grids joined together; Thursday’s is overlapping grids; and Friday’s is a very strange mixture of shapes filling a standard 9×9 grid. All will make a change from the usual fare, but do get hold of one of Polly Toynbee’s clothespegs before visiting the website.