Number Baseball: Bulls & Cows

The classic code-breaking game — guess the secret number of distinct digits —
reborn with a clean, modern design. Also known as Bulls & Cows.

Learn it in 30 seconds. Stay hooked far longer.


■ How to play — S · B · O

Each turn, enter a number and tap Submit for three clues:

- S (Strike) : right digit, right spot
- B (Ball) : right digit, wrong spot
- O (Out) : the digit isn't in the answer

e.g. answer 159, guess 158 → 2S 0B 1O
(1 and 5 are placed right = 2S / 8 isn't in the answer = 1O)

Narrow it down and turn every digit into a Strike to win!


■ Difficulty your way

- Length: 3 to 6 digits
- Hints ON/OFF (turn off for a real challenge)
- Turn limit: 5–20
- Time per turn: 10–60s, or unlimited


■ 18 achievements

First win, one-shot, sniper, win streaks, mastering every length —
18 goals that keep you coming back.


■ Play stats

Per-length records, win rate, best streaks — all tracked automatically.
Watch yourself improve.


■ Watch an ad to continue

Out of turns? Optionally watch a rewarded ad for bonus turns. Always your call.


■ Light, clean, offline

- No sign-up, no login
- Play offline (network only when an ad shows)
- All data stays on your device — no server
- Haptics and sound, toggleable in settings


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