Welcome to Mastermind!

Crack the secret code in ten attempts or less.

• The Secret Code: A hidden sequence of 4 colors is generated at the start. Colors can be repeated, with 6 colors to choose from.
• Feedback System: After each guess, you receive pegs:
  • White Peg: One of your colors is the correct color and in the correct position.
  • Black Peg: One of your colors is in the code, but in the wrong position.
• The Duplicate Rule: Feedback is a 1-to-1 match. You get awarded a peg each time a color in your guess appears in the secret code.

How to Play

1. Place Your Guess: Click the colored circle buttons to fill a row, and use Undo to edit the current row.
2. Submit: When satisfied with your guess, click Check to lock it in and get feedback.
3. Analyze & Repeat: Use the feedback to narrow down the code. Guess the sequence within 10 tries to win!