A Man And His Ideas

  Circle Diamond Square Code Breaker Game The Circle Diamond Square is a two-player game in which players compete to find the other players' secret number. The secret number has four digits, each digit a number between 0 and 9; all the numbers are different. The players take turns as the Coder and the Decoder. The  Coder picks a secret number code; the Decoder attempts to crack the code using clues from the Coder. Each player has a worksheet with tables with rows and columns for writing the code number, decode number and the clues.   The game begins when the Coder writes four secret number digits in the Coder table’s top row. To start guessing the secret number, the Decoder writes four numbers in the top row of the Decoder table. The Decoder tells the Coder the number. The Coder writes the guess on the row under the secret number. The Coder responds with a clue in circle, diamond, or square code that the Decoder uses to deduce the secret number.   If the g...