Mastermind
The board game Mastermind is designed to be played by two persons above the age of eight. One of the players creates a code and the other tries to decipher it with the help of the clues.
The game consists of a decoding board, code pegs and key pegs. The board has twelve rows, each with four large and eight small holes. At the two ends of the board are four large holes covered by a shutter. This is where the player creates a secret code using any of the six coloured pegs.
The code-breaker has to guess the colours of the code pegs and their exact positions. He gets twelve chances to do so. After each attempt, the code-maker provides a clue and the code-breaker responds by filling in a row of code pegs on the board. The code-maker indicates which part of the guess is right or wrong by placing flat key pegs on the board.
The game continues until the code-breaker cracks the code or completes twelve guesses.