Type a number using the on-screen keypad and submit it. The code has a fixed number of digits — no letters, just numbers.
Green (+N) tells you how many digits are in the exact right position. Amber (-N) tells you how many are correct but in the wrong place.
Use each clue to eliminate impossible digits and zero in on the answer. Crack it in as few guesses as possible to earn maximum stars.
Codes grow from 2 digits all the way to 7+ digits across six tiers and hundreds of handcrafted levels.
Reveal Digit shows one correct position, Extra Try adds a guess, Number Scope confirms if a digit is present anywhere in the code.
A hard puzzle every day with a shared secret for all players, scored by guesses and time — compete for the top spot.
Compete with players worldwide on daily and all-time rankings. Can you reach the top?