The modern version of what code-breaking board game for two players, that resembles an old pencil and paper game called Bulls and Cows, was invented in 1970 by Mordecai Meirowitz, an Israeli postmaster and telecommunications expert?
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".
Mastermind (board game) was also another version for the TSS/8 time sharing system, written by J.S. Felton and finally a version for the Multics system at MIT by Jerrold Grochow. The modern game with pegs was invented in 1970 by Mordecai Meirowitz, an Israeli postmaster and telecommunications expert. Meirowitz presented the idea to many major toy companies but, after showing it at the Nuremberg International Toy Fair, it was picked up by a plastics company - Invicta Plastics, based near Leicester, UK. Invicta purchased all the rights to the game and the founder, Mr. Edward Jones-Fenleigh, refined the game further. It was released