MIND LOCK

One secret code. Eight chances.

Every guess gives you a clue. MIND LOCK is a compact deduction puzzle about turning partial information into a clear solution. Can you crack the sequence before the eighth guess?

How to play

Choose four different digits from 1 to 6 and submit your guess. Green means a correct digit in the correct position; yellow means a correct digit in another position. Clues do not reveal which digit they describe. Use the mouse, touch, or keys 1–6, Backspace and Enter.

Play free

The complete local game, unlimited practice, a shared daily code, personal records and local statistics are free. English and Portuguese are available in the game. Your local records stay in this browser.

COMPETITOR — US$2, once per game

Sign in with itch.io and restore your purchase in the COMPETITOR panel. A qualifying contribution of at least US$2 through this game’s official itch.io checkout unlocks official daily attempts, a world ranking position and verified competitive statistics. Server-side purchase checks and replay validation are required; browser scores alone do not count. Already contributed? Restore your purchase before paying again. Contributions to another game do not unlock this game. FREE play remains complete.

Rankings show real submitted results only. An empty table means no qualifying results have been submitted. Official play requires an internet connection; local gameplay makes no API calls per move. One official daily attempt is available per account and UTC date.

Made by QuantMatrix Games. Try PHANTOM GRID, RULE FLIP and REWIND.

Play free, share your result, and compare strategies without revealing today’s code.