Find the hidden code using the clues from your attempts. Enter digits with the keypad, correct them with ⌫, then select Check. Zero is allowed in every position. You have unlimited attempts.
◆ counts correct digits in the correct place. ◇ counts other correct digits in the wrong place. Counts are not attached to individual slots. In Hard mode, each occurrence is counted only once.
The i button before Check shows all previous attempts. ◆ means right place; ◇ means wrong place.
After a check with exact matches, tap any filled slot to keep or release that digit for your next attempt. This is your own deduction, and may be wrong. The ◆ help fixes all truly exact digits and releases incorrect fixes. The ◇ help marks misplaced digits and releases them. Each revealed digit counts as one hint; each helper is available once per attempt.
Crack all positions to finish. The result shows attempts, used hints and active time. These modes are separate: 3, 4 or 5 digits, each in Easy or Hard. There is no time limit.
Use digits 0–9 to enter your code, Backspace or Delete to erase and Enter to check. Tab, Enter and Space also operate the buttons.
Active time starts with your first input and pauses in menus, the demo and the background. The timer is hidden by default. Your running round resumes on this device.
For entertainment only. No stakes or prizes.