Classic Russian Solitaire description

Russian Solitaire is a classic card game.

The goal is to move all cards to the four foundations at the right by suit from A to K.

You can move a group of cards to another tableau pile if the starting card of the group is in
the same suit and of an immediate lower ranking with the top card of the other tableau pile.

An empty tableau pile can be occupied by a K or a group starting with a K.