here is another my creation... jigsaw "The Misfit".
This puzzle consist of 13 pieces and come in such a way that only one piece is separated from the others.
The task is to connect the separated piece with the other pieces and it will be much more difficult to do than it looks.
I believe I was not wrong when I rated this puzzle with maximum difficulty 10/10. :P
... I have noticed that many people like to solve this puzzle by purely random attempts to fit all pieces into the frame ...but I will warn you that such a method can take 1 - 2 hours or even 5 hours, depending on how lucky you are.
However, it is possible to apply a certain strategy here to minimize the luck factor and the time required to assemble them.
A short story behind the creation of this puzzle.
This puzzle came about by accident as a result of one of my experiments, and I was very surprised when I struggled to put them together. It was very difficult, even though I knew some rules about their creation that could help me. (What you don't know, you'll struggle even more. :P)
Finally when it seemed like I was going to put them together, the last puzzle couldn't fit. That was especially fun for me and the decision was certain: "This must be a new puzzle".