書かれた数字だけ電線をつなぐパズル

It's like a chemical (atomic) bond.

The rules are easy to understand, but it's deep and fun.

This is the birth of the best brain training puzzle.

rule

An electric wire is drawn between the rings.

1. Connect as many wires as the numbers written on the ring.

2. Overlapping electric wires can only be connected to one of them.

Enjoy connecting wires