There are 3 known solutions for the famous 9 dots 4 lines brainteaser. Are there other solutions where the lines actually connect all dots? - Quora
![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
![Regarding the 9 dots 4 lines problem, is there a general solution/algorithm for n*n grids and (n+1) lines? : r/math Regarding the 9 dots 4 lines problem, is there a general solution/algorithm for n*n grids and (n+1) lines? : r/math](https://external-preview.redd.it/-s6-4yUMhubxhM5FAeBPPIG4yI9wB0MYKp5_7fqgzvY.jpg?auto=webp&s=f7588cc6b946dc7f2aa022b96343d19c9fe63beb)