Number deduction
How to play Classic Codebreak.
Crack a hidden number code. Start with untimed Practice, then try timed runs or challenge friends.
Play Classic Codebreak free ↗Your first game
- Choose Practice for an untimed solo puzzle.
- Submit a code using the chosen length and repetition rules.
- Use the hit and misplaced-digit clues to rule out possibilities.
A useful starting strategy
Keep a candidate list. A useful guess rules out several answers even when it is not the answer itself.
Can I play on my phone?
Yes. KRACKO supports mobile touch controls and desktop play. Use Install app on the home screen for installation options. Online rooms require an internet connection.
Do I need other players?
Practice is solo. The same codebreaking family also has Duel, Party and Speed Run; each has its own setup.
Games are free to play in the current release. Read the in-game rules for the settings and limits of your chosen format.