The Russian Solitaire is played using two types of piles only, which are:
The Tableau: These are the seven piles that make up the main table. 52 cards are distributed among the piles.
The Foundations: These are the four empty piles above the tableau piles.
The objective of the Russian Solitaire game is to build successful foundations starting from Aces up to the Kings following the same suit.
Russian Solitaire is played using a standard deck of 52 cards. All of the 52 cards are placed onto the seven Tableau Piles. The first tableau pile has no face-down card, the second has only one face-down card, the third having two face-down cards, and so on.
The foundation piles start the game empty.
Moving Cards Around the Tableau:
One or multiple cards can be moved around the tableau. To move one card, the card should be one rank lower and of the same suit as the card, it is being placed on. For example, you can move a Queen of Spades onto a King of Spades.
To move multiple cards around the tableau, the bottom card of the sequence should be one rank lower and of the same suit as the card, it is being placed on. The other cards of the sequence aren't taken into consideration. For example, You can move a sequence of cards consisting of 3 of Diamonds, 7 of Hearts, and 10 of Spades onto Jack of Spades, since the bottom card (10 of Spades) is one rank lower and of the same suit as the card, it is being placed on.
Moving Cards onto the Foundations:
The base of every foundation pile starts off with Ace and moving all the up to the King. You can build four foundations, one of each suit starting off with Ace and then placing cards that are one rank higher and of the same suit. For example, placing 2 on Ace, followed by 3, 4, 5, and all the way up to the King.
The game offers unlimited undo and allows the users to undo their moves as many times as they want to. There is no limit over how many times you can undo your moves. However, each undo is considered as a new move.