Strike&Ball

The aim is to guess the secret number of the opponent.
The secret number is made up of 4 different digits.
Each digit is a number between 0 and 9 and the first digit cannot be 0.
Every player in turn, communicates a number that opponent responds by
communicating the result :strike number (right position) or Ball number (wrong
position).
Example: player 's got, like secret number, 1234. The opponent 6273.
the opponent 's got 1 strike (number 2) and 1 Ball (number 3)

This game is good to train memory, focus your attention, tackle stress and
prevent mental aging.

"Mind is like a Parachute, it works only when it is open" (A. Einstein)

Developed by students of ITI "Archimede" Catania Italy ( 4 B Information technology class)