Menu Home Blog About Us Work we do Content Contact Us Advertisement The other day I heard a really interesting puzzle. It's one of those proverbial prisoner problems where you are condemned to die unless you can prove your intelligence to a devious jailer. You, and your friend, are incarcerated. Your jailer offers a challenge. If you complete the challenge you are both free to go. Here are the rules: The jailer will take you into a private cell. In the cell will be a chessboard and a jar containing 64 coins. The jailer will take the coins, one-by-one, and place a coin on each square on the board. He will place the coins randomly on the board. Some coins will be heads, and some tails (or maybe they will be all heads, or all tails; you have no idea. It's all at the jailers whim. He may elect to look and choose to make a pattern himself,...