Solitaire is the famous card game known to many as Patience or Klondike. Like many old games, the exact origins are unknown, and the earliest documentation is from a German book in 1783. It rose in popularity in Europe throughout the 1800's, and with the advent of computers has enjoyed a resurgence. Solitaire is one of the most popular games of all time.
When you want a quick game and no fuss
The aim of Solitaire is to reveal all the cards that are face down, and ultimately build 4 stacks of cards at the top, one stack for each of the 4 suits. You can drag a card onto another card if it is numbered one less than the other card, and of a different colour (red on black or black on red). You can use the 'pack' at the top left to deal new cards at any time. Start building the 4 stacks at any time.