Mastermind

Mastermind or Master Mind is a simple code-breaking board game for two players, invented in 1970 by Mordecai Meirowitz, an Israeli postmaster and telecommunications expert. It was played as a pencil and paper game called bulls and cows at least as far back as the early 1960's. more...

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Gameplay and rules

The game is played using:

a decoding board, with a shield at one end covering a row of four large holes, and twelve additional rows containing four large holes next to a set of four small holes;; code pegs of six different colors, with round heads, which will be placed in the large holes on the board; and; key pegs, some colored, some white, which are flat-headed and smaller than the code pegs; they will be placed in the small holes on the board.;

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. The codemaker chooses a pattern of four code pegs. Duplicates are allowed, so the player could even choose four code pegs of the same color. The chosen pattern is placed in the four holes covered by the shield, visible to the codemaker but not to the codebreaker.

The codebreaker tries to guess the pattern, in both order and color, within twelve (sometimes ten or eight) turns. Each guess is made by placing a row of code pegs on the decoding board. Once placed, the codemaker provides feedback by placing from zero to four key pegs in the small holes of the row with the guess. A colored key peg is placed for each code peg from the guess which is correct in both color and position; a white peg indicates the existence of a correct color peg placed in the wrong position. Once feedback is provided, another guess is made; guesses and feedback continue to alternate until either the codebreaker guesses correctly, or twelve incorrect guesses are made.

The codemaker gets one point for each guess a codebreaker makes. An extra point is earned by the codemaker if the codebreaker doesn't guess the pattern exactly in the last guess. The winner is the one who has the most points after the agreed-upon number of games are played.

History

Since 1971, the rights to Mastermind have been held by Invicta Plastics of Oadby, near Leicester, UK. They originally manufactured it themselves, though they have since licensed its manufacture to Hasbro in most of the world, and two other manufacturers who have the United States and Israel manufacturing rights.

Starting in 1973, the game box featured a photograph of a well-dressed, distinguished-looking white man seated in the foreground, with an attractive Asian woman standing behind him. The connection between these people and the game of Mastermind was not explained. The two models (Bill Woodward and Cecilia Fung) reunited in June 2003 to pose for another publicity photo.

Read more at Wikipedia.org