Introducing our Disney jigsaw 500 puzzles for the holiday....can be used also as a family game during this holidays. Pair with our other play sets for a complete package.
There are various ways of cutting the joints of jigsaw pieces. Mainstream puzzles use a piece-edge style called fully interlocking. "Comprehensive interlocking" means that several adjacent pieces are connected together. If one of them is moved horizontally, all the connected pieces will slide in the same direction, and will not be discrete. Sometimes the pieces fit together so tightly that the whole piece can be picked up without unravelling.
'A close look at the joints of the jigsaw puzzle
The interlocking of pieces is usually achieved by the convex and concave edges of the pieces, which is similar to the "mortise and tenon joint" in furniture making. The main body of the piece is A rectangle with the same size and form, assuming that the two pieces tightly connected to the left and right are respectively A and B. If there is A convex A extending to the right on the right edge of the piece A, then the left edge of the piece B must have a sag B in the shape of A, and in order to make A and B mutually locked, it is also required that the end of the convex A is wider than the end connected to the edge of the piece. This kind of bulge, which is wide at the front and narrow at the back, is called a dovetail in traditional woodworking. We may also call the bumps and depressions of the jigsaw pieces "mortise" and "hole". However, if the dovetail with the tip is done on the cardboard, it is easy to layer and damage the pieces, so the tenon and the hole in the jigsaw are mostly round.