Klondike Battle Russian Bank is a double solitaire game.
First of all, you play head-to-head against an opponent (human or computer) to determine the best one. You are constantly trying to play your cards strategically onto the playing field, which you share with your opponent. The smarter player can increase its winning chances by carefully checking all possibilities and making the better moves. In the classic solitaire game, you challenge yourself, but in Klondike Battle you challenge your opponent.