emmmm, this is actually how to play Sudoku

It's very simple. Just leave an empty space between the two numbers. Just connect one number. Fill in the remaining ones that can be determined first and then push them step by step. As long as the number of bright ones meets all the numbers, you don't have to be sure to fill in all the numbers. If you are sure about a small part, fill in this small part

The number on the top corresponds to the number of lights on the bottom, and the left side corresponds to the number of lights on the right. Just push it forward.