Jigsaw puzzle

The invention discloses a jigsaw puzzle. The jigsaw puzzle comprises a bottom plate, wherein an accommodating groove is arranged on the bottom plate, a jigsaw puzzle module is arranged in the accommodating groove, the jigsaw puzzle module comprises a plurality of jigsaw puzzle units which are mutually connected, a current sub-flow path is arranged between any two adjacent jigsaw puzzle units, thecurrent sub-flow path comprises a first convex contact and a first concave contact, a lamp body and a power supply are arranged on the bottom plate, a current initial flow path is arranged between atleast one jigsaw puzzle unit and the bottom wall of the accommodating groove, the current initial flow path comprises a second convex contact and a second concave contact, a current final flow path isarranged between at least one jigsaw puzzle unit and the bottom wall of the accommodating groove, the current final flow path comprises a third convex contact and a third concave contact, and all thecurrent sub-flow paths are