Your guess:
Loading…
How to play
Build a sequence of 4 colors in the picker and tap "Try". Dark markers mean right color and position; light ones, right color in the wrong spot.
See the full rules →Dark marker = right color and position. Light marker = right color, wrong position.
0Wins
0Losses
-Best
How to play
Get started in a minute
- The computer draws a secret code of 4 colors (colors can repeat) from 6 available.
- In the color picker, tap four colors to build your guess. Tap an already filled position to clear it.
- Tap "Try". Next to your guess, the markers appear: dark for each color in the right position and light for each right color in the wrong position.
- Use the clues to deduce the code. You have 10 tries.
Controls by input type
- Mouse/touch: tap the picker colors to fill in your guess; tap a position to clear it; tap "Try".
- Keyboard: use Tab to reach the colors and positions and Enter or Space to activate them. Every move is announced in text.
Tips
- Start by testing repeated colors (for example, two of the same) to find out how many of each color there are.
- Change one color at a time between tries to isolate the effect of each change on the clues.
- A marker that turns from light to dark means you've found that color's position.
Questions about Mastermind
Frequently asked questions
A secret code of 4 colors is drawn from 6 possible colors, with repeats allowed. You try to guess it and, after each try, you get clues: how many colors are in the exact position and how many are right but out of position.
A dark marker stands for a color that is in the right position. A light marker stands for a color that is in the code but in a different position. They don't tell you which positions, only how many.
Yes. The code can contain repeated colors, and the clues count the repeats correctly, without counting the same peg twice.
Ten tries. If you haven't cracked it by then, the secret code is revealed below the board.
No. The initial draw is random, but winning depends entirely on logical deduction from the clues, which makes it a game of skill, not chance.
No. Mastermind on Cortex Jogos Web is free, skill-based, with no betting, no prizes, and no real money.
Explore the rest of Cortex Jogos Web
Also play Towers of Hanoi, Peg Solitaire, Mastermind, Lights Out and Maze. Get to know the project in About us or see how we handle your data in the Privacy Policy.