Your number's up

A couple of weeks ago we covered the memo from BA to its staff banning them from completing Sudoku puzzles during take off and landing: ‘This is a critical phase of flight and these activities are forbidden. You must be extremely alert and vigilant,’ it said.
We were at first delighted to find www.mikeoldroyd.com on the advice of Martin Thompson. Mike has written an Excel spreadsheet to solve the puzzles using a series of macros. ‘Imagine the joy on people’s faces when you tell them you have such a spreadsheet,’ says Martin. ‘Just think of all the time you could save them by automating this pointless activity.’
We were about to contact our friends in BA flight crews when we realised that during take-off and landing, they wouldn’t be able to use a laptop.