Steve Rasmussen ..... Okay, I've got this one on my list, but the build decision will depend on how the grand kids warm up to these, it looks like a tough one!
Depending on the age of the grandkids, I would recommend the Tangram (I called it Anchor No.8) as it permint hundreds of imaginary combinations... and adding magnets raises it to a greater appreciation level. I have 2 versions, a single 3mm piece layer with a 6mm x 3mm magnet through the middle and a 2 3mm layers with the magnet through the bottom one (except for 1 piece that has to be flipped for some configurations). I've magnetised and magnetic sheet fitted all these types of puzzles I have also added a .9mm thick magnetised sheet to help the pieces stick to the base when not flat, For close friends' kids, I also add an A4 magnetised sheet as many tan configurations are quite tall.
If the GKs are older, this AKKU is an ideal puzzle.
If your first cut is too short... Take the second cut from the longer end... LBD
