Welcome to the classic Mastermind (also known as Secret Code or pico-fermi) board game, which runs in a window as both a Java Applet and a standalone Java Application. Written by MarkF.
To start, click the New Game button. Any opened games are quit individually by clicking the Close X button in the upper-right corner of its window.
The object of Mastermind is to guess the sequence of four coloured pegs that the computer has selected at random. You are given ten guesses to try to find the solution.
To make a guess fill in a row with coloured pegs from the peg selection panel on its right. If you are happy with your four pegs then click its green Go button. After you click Go, the computer will award you one peg for each right colour – red if your guess was also in the right place (but you don't know which peg), otherwise yellow (right colour, wrong place, again you don't know which peg).
To reveal the computer's secret code at any time click on its SECRET CODE. Good luck!
Copyright © The name "Mastermind", the toy and distinctive likenesses thereof are the properties of Pressman Toy Corporation, by agreement with Invicta Toys and Games, Ltd. (UK). This applet is an unofficial, non-profit version, and neither it nor this site are endorsed by Pressman Toy in any way.