![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)
Regarding the 9 dots 4 lines problem, is there a general solution/algorithm for n*n grids and (n+1) lines? : r/math
![recreational mathematics - How to prove the number of solutions to nine dots puzzle - Mathematics Stack Exchange recreational mathematics - How to prove the number of solutions to nine dots puzzle - Mathematics Stack Exchange](https://i.stack.imgur.com/9i9bO.png)
recreational mathematics - How to prove the number of solutions to nine dots puzzle - Mathematics Stack Exchange
There are 9 dots spaced out in square shape (3x3). How do you connect all the dots without lifting your pen and using 3 straight lines? - 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)