Solitaire must be one of the most played games on any platform. We have had it for many a year on our Windows PC's and then smartphones - and if I take a trip on the London Underground I can guarantee ...

If you’ve ever gotten bored enough around a deck of cards or a PC, you’ve probably played a hand or two of Solitaire. The card-stacking game may be the most ubiquitous solo game ever made.

Games expert Dmitry Kandratsyeu, Head of Product at Solitaires.com, said: "From a quick game at work to killing time on your nan’s PC, most of us have played Solitaire.

"Candy Crush Solitaire," mobile game developer King's latest sugar-coated game in its popular "Candy Crush" franchise, launches Thursday.