Is there any trick to solve the puzzle?

1. First, the puzzle is classified according to color, right angle and straight edge;

2. Observe the color distribution of the sample map and pay attention to the outline of people and trees on the sample map;

3. First, splice the right-angled straight edges together, and you can splice the surrounding ones. Start from the side, because it is easier;

4, the same color block is generally in the same area, and one color block is connected with another color block;

5. Observing the shape of the puzzle itself can make up, which is often the most difficult method.

Extended data:

Modern puzzles are mostly made of cardboard, so the cost is lower and the manufacturing process is simpler. The pattern of a jigsaw puzzle is a whole artistic print pasted on the surface of a cardboard before cutting, and the picture content can be enlarged photography, painting or other kinds of plane art.

The pasted cardboard will be sent to a special punching machine, which is equipped with a steel cutter set combined according to a predetermined pattern, and the cardboard will be cut into pieces by the cutter set after being forcefully punched by the machine tool. This process is quite similar to the forming process of graphic biscuits, except that the impact force of jigsaw press is much higher. For example, for a typical 1000 jigsaw puzzle, in order to make the tool set on the mold completely cut through the cardboard, the machine tool is required to generate a pressure of up to 700 tons when running.

The mold (printing plate) of jigsaw puzzles is usually made of plywood. The modeler first draws or burns grooves on the template according to the assembly pattern of the jigsaw puzzle pieces, and then inserts the blades into the grooves one by one to assemble the tool set. The surface of the cutter set should be covered with a layer of elastic material, usually foam rubber, which is used to eject the cardboard parts from the holes of the cutter set after printing.

References:

Baidu Encyclopedia: Puzzle