I am a keen puzzle addict and whilst neither of my kids like them my oldest can do them if needed. Youngest has always struggled but it's really struck me now he's 9 just how much he struggles with them. He can't identify straight bits or understand that these need to go in a line. We've tried focusing on features rather than edges which was more successful. I don't think it's a key life skill but it's really odd to me that he doesn't seem to understand why straight bits go at the outside or the shapes fit into one another and look similar. We're only doing small puzzles of things that are of interest to him so nothing with small pieces. Does anyone have any advice for things that might help him with some puzzle skills?I don't expect him to suddenly develop a love of them I am just slightly worried that kids he is friends with can do more complex things so wondering if there is some element of problem solving skill I should be working on with him or whether it's fine to just accept this isn't something he can do. He did have small wooden puzzles as a toddler but struggled and did them by colour and recognition.