Got a couple of chairs that are getting a bit too wobbly so want to fix them. The problem is getting them apart though. The frame is held together by 4 triangular pieces but they are proving impossible to separate from the frame even after the screws are removed as they are glued as well

Anyone got any bright ideas on how to separate them from the frame? There isn’t enough space to get a blade in but I do have a good collection of hammers 🙂