A classic brain game where you deduce the hidden number with logic. The same pencil-and-paper game you remember — now smoother on your phone.
Guess the hidden number within a limited number of tries to win! Right digit and right position = Strike (S), right digit wrong position = Ball (B), no match = Out. Combine the hints to close in on the answer.
Digit + position = S, digit only = B, no match = OUT. Intuitive feedback to deduce the answer.
Easy (3 digits · 10 tries · no repeats), Medium (4 digits · 12 tries), Hard (4 digits · 10 tries · repeats allowed).
Challenge your own best time with a real-time timer and try counter.
Review every guess and its result at a glance as you logically narrow things down.
Every game saved automatically. Browse by period with day-by-day grouping.
Win rate, average tries, best record, and breakdowns by difficulty and month.
Korean / English support, with light and dark themes.
No sign-up; all records stay on your device and are never sent anywhere.
The internet connection is used only to show ads. Game records are stored only on your device and are never transmitted. Play instantly the moment you install — no sign-up.
No sign-up — play the moment you install. Deduce the answer with logic.
📲 Get it on Google Play