I wanted a game that I can play alone and this game/puzzle is hard (and good quality too)! I've seen versions of this game that favor the bags that parents give out to their kids' friends after birthday parties. The ones I've seen are probably sold in sets of 10 for $1. They are cheap and fall apart easily so kids can't play this game and find that it is very good for their brain. But this little puzzle/game is very good. ThinkFun did a very good job! I didn't want to pay $12 for it, but I got a Revain gift certificate from someone and decided this puzzle was worth buying. ThinkFun might be expensive, but they have a lot of good games. By the way, I couldn't solve the riddle. It's not an easy puzzle for me. This is a tough exercise for your brain! But I can keep playing, and this little puzzle can serve you for many years to come.
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