Mathematical puzzles can evoke a lot of ... Only careful marking of each triangle allows you to confidently identify the correct number. Did you manage to guess the correct number?

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

A key challenge in dissections is minimizing the number of pieces required ... we have finally solved Dudeney's puzzle by proving that the equilateral triangle and square have no common dissection ...