Russian Solitaire is a variation of Yukon Solitaire. The only different is that in Yukon Solitaire, ranks within a pile are built in descending order and in alternate colors, and in Russian Solitaire, they are built descendingly in suit.
What this means is that unlike in Yukon Solitaire where any non-Ace card has two potential cards that might be placed on top of it, in Russian Solitaire, there is only one. This not only make winning a lot more difficult but changes the strategy somewhat.
In Russian Solitaire, there is no real reason to delay placing any card on top of another, nor sending any card to the Foundations. But when a column is vacant, it definitely can make a difference which King is moved into it.
This relegates Russian Solitaire to a game more of chance then of skill. For those who play previously won games only, finding a path to the win might be a bit of a challenge.