🐮Bulls & Cows

The classic 1A2B deduction game — crack the hidden 4-digit code

Guesses
0
Fewest moves

Type 4 unique digits to start deducing

Guess the hidden 4-digit number using A/B hints! · Type digits or use the keypad, Enter to submit. A = right digit right place, B = right digit wrong place.

How to Use

FAQ

Can the answer repeat digits?

No — both the secret and your guesses use four distinct digits.

How few guesses?

Sharp deduction usually cracks it in 5–7 rounds.