What is Pyramid Solitaire?

Pyramid Solitaire is a solitaire card game where the player tries to match cards into pairs that add up to 13 (Aces count as 1; Jacks as 11; Queens as 12 and King as 13)

How to play Pyramid Solitaire?

Remove all the cards on the pyramid by matching cards that add to 13.  When all the cards have been removed, you win! 
Start by matching any cards on the base of the pyramid to add to 13
If there are none that match, deal some cards at the bottom and match it with either the base of the pyramid or inside the waste pile itself
As you remove cards, other cards open up behind them, but before you can use those cards to match, you have to make sure it isn't blocked
Lastly, since Kings count as 13, you simply get rid of it on its own