Celtic Knot

 GoAnywhere, 160 pieces. I have never been sadder that a laser-cut puzzle company disappeared. There are a large number of perfectly reasonable wooden puzzlers who would hate this puzzle; I thought it was genius, basically a laser-cut five exclamation point Tormentor. (Warning: the image on the box provides far more visual clues than the actual image on the puzzle.) Most laser cutters would struggle with a puzzle with this many dropouts, because they'd have trouble getting the connectors distinguishable enough to really tell you when you'd gotten it right. That wasn't a problem here, despite the small piece size. For added difficulty and frustration, there are a bunch of fake/border knobs, not symmetrically placed. GoAnywhere also had a huge range of technical innovation. I wish we could have seen what they'd have done with modern thicker wood. 5/5

The intersection here is really hard to identify in the individual pieces, but obvious once assembled