Not real solitaire, and doesn't use a reg deck, so you can't assume because 4 6s have played their won't be anymore. Seems like they rig it, so you have to spend$ to win. I've been playing the same level for two days and still can't win it. It also makes you watch ads to earn the coins and then again to play. And the ads are 30 seconds long. Oh and don't do the heart challenge if you choose the morally correct answer you lose and the other cost you and you don't win anything in the end