What is the Classic Pyramid game, how does it work?

According to the introduction of RunServer, Classic Pyramid is a Card game on the Android platform. There is currently a 1.3.5 version released on May 22, 2016, you can see the details below.

Most precise Pyramid solitaire replica you ever seen! Classic Pyramid solitaire. Looks and feels just as old desktop PC game that we played for a long time. Same scoring system, graphics, card decks. Player needs to eliminate pairs of cards adding up 13. I.e. twos + jacks, aces + queens. Kings are removed on first tap.

- small and fast
- no unneeded features, no custom weird card images
- single tap selects card, double tap on stack moves card to waste
- carefully redrawn card images