![](/gifs/sp.png)
?
Using exactly four straight lines, without taking your pen off the (virtual) paper, can you join all nine dots?
A Charming Puzzle – Twentieth Century Standard Puzzle Book, A. Cyril Pearson.
hide workings hint answer print
Share link – www.brainbashers.com
Workings
Note: BrainBashers has a Dark Mode setting.