This is a very entertaining game. Clever use of line position and length changes mathematical calculations.
It is very skillful, need your observation, strategy and your divergent thinking. We hope you have to play this game, not because we made it, but it really is a good game.
Link all digit ghosts, clear all digits. Skillful adjustment of the position of the line. Especially seemingly no solution, if you reposition some of the lines, change the length and direction of the line, maybe you can find the answer again. This may be the games greatest pleasure.