Jack Krijnen’s highly sought after Merry Go Round puzzle set. One of my favorite N-Ary puzzle because there are so many N-Ary configurations. You can solve this as a nice and relaxing bi-nary puzzle or you can make it more challenging and solve it as a ter-nary or even harder, quarter-nary or above and beyond with the Qui-nary. You can also mix and match and come up with your own N-Ary configuration from easy to challenging. All in all, solving any will bring a big smile to your face and a gre...