Learn how to solve 'almost' impossible puzzle [video]

Before you watch the video above until the end - after all, it shows the solution to the puzzle - try to figure out how you would win this challenge. You need to connect all nine points on the sheet of paper by drawing only four lines.

However, you cannot remove the pen from the surface of the paper or draw on a line that has been previously drawn. Want a tip? Change the perspective and think "out of the box".

Source: YouTube