What is Klondike Solitaire?

Klondike Solitaire is a solitaire card game. Many people simply refer to it as "Solitaire".

How to play Klondike Solitaire?

Put all the cards to the the upper corner. The rules are as follows:
The upper right corner decks must follow suit, and must be put from A - K;
You can pile up the cards at the bottom, the cards must be put in alternating colours and in descending order of consecutive numbers;
Only a K can be put at an empty column at the bottom;
You can get new cards by clicking the deck at the upper left corner.