Pyramid solitaire

Solitaire is played with a deck of 52 cards (from 2 to ACE). 28 cards laid out a pyramid, and the rest go to the reserve. The goal of solitaire is to remove all cards forming a pyramid. All the cards, except the king, removed in pairs. The king removed by itself. What would the cards formed a pair the sum of their values must equal 13. In this case, the value of the card numbers is equal to its face value, Jack=11, Queen=12, King=13, ACE=1. Operate only open cards. If the pyramid need no cards - you can look through the reserve. Reserve flipping one card. If the open card from reserve is paired with open cards from the pyramid - they can be removed. The reserve can be fully scroll 3 times per game. For the removed pair harvested 5 points, the next 10, then 15, etc. endlessly. If reserve flipped or move taken back (undo) count points again starts with 5. If the pyramid not contained cards - solitaire converged! In the settings there is an option "Pair with cover" when the pair is formed if one closes the other and nothing else interferes. Since this option makes life easier, then removed a couple of 5 and 4 points, and then 8, 12, etc..