Have you heard about the chess paradox? If you have, well then there’s really no point reading on, but if you haven’t, it is a very confusing mathematical paradox involving the chessboard.
Here’s what I’m going to do: I will cut up the chessboard with three straight cuts (left). Now, I’ll rearrange the pieces into a rectangle (right).
The area on the left is 8×8=64. But the area on the right is 5×13=65. What is going on?!
The trick is connected to mathematics involving the Fibonacci sequence and its related Cassini’s identity. Oh, and there is a mistake somewhere, because 64 obviously does not equal 65. Click here to see the solution in ChessBase’s article “A Mathematical Chessboard Paradox”.