Microsoft Solitaire first appeared on Windows 25 years ago. In that time, new time-wasting games took over. Solitaire used to be the ultimate way of killing time at work, with Minesweeper coming in at a close second place finish. Nowadays, games like Candy Crush are ubiquitous. Solitaire never had a the kind of social components that makes games so catchy today. That's about to change. To mark the silver anniversary, Microsoft will be hosting a global solitaire tournament in June. Hopefully it will have more than just ranking, and there should be a social element as well, if it wants to regain ground against games from a newer generation.