This is a classic puzzle, originally invented in 1898!
If you enjoyed the video, please like and subscribe!
Original Patent: https://www.google.com/patents/US609081
I'm a Top-10 finisher in the US Puzzle Championship and just released a logic puzzle game on Steam! The game is called RYB: http://store.steampowered.com/app/547050
Intro song: Tekvision - Mycoplasma
Intro template: /SDJGRedstoneDJ