Crazy Shapes Puzzle - Hardest Puzzle Ever

It's a 9-piece puzzle.  How hard could it be?   Well, it turns out that it can be VERY HARD!!

This was inspired by a puzzle that I had as a kid in the 80s called “The Crazy Plane Game”.  It is one of the most challenging puzzles that I've done.  There are only 9 pieces organized in a 3x3 grid.  However, each of the 9 pieces can be organized in 4 different orientations, resulting in 1.45 million different combinations!  Admittedly, I can't draw planes, but I'm a master at basic shapes, so instead of planes, I used simple 3-, 5-, 7-, and 9-sided polygons.

Because each shape has an odd number of sides and corners, a correct match will always have a flat side on one tile and a point on the other.  For example, in the picture , the top blue heptagon is correct.  The middle and bottom are incorrect.  Likewise for the picture of the green nonagons below.

In the colour version, each of the 4 shapes are colour coded.  I wanted the "board" to be a different colour, so each tile has a base colour (blue in the profile) with a thin layer of white on top to add a 5th colour (technically just another light shade of blue).  If you change the colour of the base, be sure to change it on all tiles.

In both the colour and non colour versions, there are brim ears that will need to be removed after printing.  These were added to prevent the warping of the corners that I experienced in my first print.

STACKING HOLDER

There is also a holder included for when the puzzle is not in use.  The holder has the shapes printed on them for reference.

Lastly, I didn't post a picture of the solution, and for those of you that do solve it, I ask that you comment below, but do not post a pic.  For those that cannot solve it, please message me directly and I will send you the solution.

Hopefully you will all be as challenged as I was as a kid and challenge others with this puzzle as well!