![9 dots 4 lines | 9 dots 1 line | This tricky puzzle & the awesome riddle has three genius solutions - YouTube 9 dots 4 lines | 9 dots 1 line | This tricky puzzle & the awesome riddle has three genius solutions - YouTube](https://i.ytimg.com/vi/4TbT4bpzlbE/maxresdefault.jpg)
9 dots 4 lines | 9 dots 1 line | This tricky puzzle & the awesome riddle has three genius solutions - YouTube
COB - COB logo. Did you know it represents 9 dots that you have to connect with only 4 lines. And the only way to do it is by going outside "the
![7: Nine dots puzzle: draw four straight lines that go through all nine... | Download Scientific Diagram 7: Nine dots puzzle: draw four straight lines that go through all nine... | Download Scientific Diagram](https://www.researchgate.net/publication/277007765/figure/fig24/AS:669526043660305@1536638856355/Nine-dots-puzzle-draw-four-straight-lines-that-go-through-all-nine-dots-but-without.png)