Cluedo gold plated, brass finished and sterling silver versions, which have appeared in a variety of designs. There are nine rooms in the mansion where the murder can take place, laid out in circular fashion on the game board, separated by pathways overlaid by playing spaces. Each of the four corner rooms contains a secret passage that leads to the room on the opposite diagonal corner of the map. The centre room (often referred to as the Cellar, or Stairs) is inaccessible to the players, but contains the solution envelope, and is not otherwise used during game play. Coloured "start" spaces
Mastermind (board game) pencil. There is a numeral variety of the Mastermind in which a 4-digit number is guessed. Mastermind (board game) Mastermind or Master Mind is a code-breaking game for two players. The modern game with pegs was invented in 1970 by Mordecai Meirowitz, an Israeli postmaster and telecommunications expert. It resembles an earlier pencil and paper game called Bulls and Cows that may date back a century or more. The game is played using: The two players decide in advance how many games they will play, which must be an even number. One player becomes the "codemaker", the other the "codebreaker".