Play Mastermind Online

About Mastermind

Mastermind is the classic code-breaking board game. The computer picks a secret pattern of 4 colored pegs from 6 possible colors (repeats allowed). You have 10 guesses to crack the code using logic and deduction. After each guess you get feedback: filled dots mean a correct color in the correct position, outlined dots mean a correct color in the wrong position. The fewer guesses you need, the higher your score!

How to Play

1. Click a color from the palette to select it
2. Click a slot in the current row to place that color
3. Fill all 4 slots, then press Submit Guess
4. Read the feedback dots: filled = right color, right spot; outlined = right color, wrong spot
5. Use logic to narrow down the code within 10 guesses

Controls

• Mouse Click: Select color / Place peg
• Submit Guess: Check your guess against the code
• New Game: Start a fresh puzzle