Solitaire Classic is like a cool puzzle with cards! You arrange the cards in lines from king to ace, but they have to switch colors - red, black, red, black. There's a pile to pick from if you run out. The catch is, you've got to use all the cards and make four piles, one for each suit, starting with ace and going to king. It's tricky but super rewarding! Plus, you can play it by yourself - great for when you want to be alone or if it's raining outside. It's just like magic, but with cards!