She’s pretty good at Mastermind.

The box says the game is suitable for ages 6 and up. While a six-year-old can understand the rules and be the “hider”, they won’t enjoy the “guesser” role much because all they can do is make random guesses. At 12 Ingrid has just about gotten to the level where she has mastered the game and can get the most enjoyment out of it.