Rules
- Build a 4-symbol combination.
- Each try shows exact symbols and present symbols.
- Find the code in 8 tries or fewer.
Playable solo game
Mastermind
Mastermind is a solo deduction demo: choose 4 symbols, read the clues and refine your next guess.
logiccodededuction
Why this game works
The fun comes from logical progress: every mistake gives useful information.
Game history
Code-breaking games have long existed in tabletop play. Mastermind made the format famous with a short, readable rule.
Playable version
Mastermind
Find a secret 4-symbol code in 8 tries.
FAQ
Is Mastermind free?
Yes. This is a free solo demo with no account and no installation.
Do I need an account to play Mastermind?
No. The game runs directly in the browser.
How is this different from TABUZZZ?
This page lets you discover a mechanic. TABUZZZ adds multiplayer play, shared rhythm, sessions and hosted formats.
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