Game with mixed colored cards
Normally, casinos would use playing card decks in two different colors of red and blue, but they don't mix them together. At the same time of playing one set of cards, they put the other set through a shuffle machine. Interestingly, if you have been across the European casinos, there would be a reversible situation: mixed card blackjack game can be found in some casinos. Here, there has been an interest topic that whether it is possible to count the cards by color. That is, for 6 decks of cards with 3 red decks and 3 blue ones, player count the red cards separating from the blue cards.