Valentine SudokuSorry it's late, but here's a Valentines day treat courtsey of the Astraware Sudoku of the Day site. 8 beautiful Sudokus to give to a loved one, or perhaps you could solve them together in an aura of love-flled bliss. The art of romance is clearly not dead. For the more electronically enabled amongst us, Astraware's Sudoku game for PDAs is a worthy purchase.

But you can love Sudoku too much. It has been reported by the Wall Street Journal that British Airways have had to issue a memo to their 13000 cabin crew staff to instruct them that it is forbidden for them to play Sudoku (and related puzzles) during takeoff and landing. Apparently it worries the passengers that the crew's attention may be not entirely on flight safety as they struggle to work out, for instance, whether a nine should go in the top left box or not, and ignoring the scary black smoke emenating from engine #1.