Bulls and Cows Online
Play Bulls and Cows online, also known as 1A2B. Guess the hidden 4-digit number with no repeated digits, then use A/B clues to narrow the code step by step. Full 10-digit search space, closest to classic Bulls and Cows.
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Bulls and Cows Daily ChallengePlay today's shared challenge.
Countdown NumbersCombine numbers and operations to hit the target.
FutoshikiFill the grid while satisfying every inequality.How to Play Bulls and Cows
- Guess the hidden code: The goal is to find a hidden 4-digit code. In this version, each digit is unique, so the same digit will not appear twice.
- Read the A/B clue: A means one digit is correct and in the correct position. B means one digit is correct but in the wrong position.
- Use each clue to eliminate possibilities: After each guess, compare the clue with your previous guesses. Remove impossible digits, keep possible digits, and test new positions.
- Example: If the answer is 1234 and your guess is 1523, the clue is 1A2B. One digit is exactly correct, and two other digits are correct but misplaced.
Online Bulls and Cows / 1A2B Number Deduction Game
Bulls and Cows, also known as 1A2B, is a classic number deduction game. A hidden 4-digit code is generated, and each guess returns A/B clues that tell you which digits are correct and whether they are in the right position.
This online version is designed for short practice sessions. You can play freely, improve your elimination strategy, and then try the Bulls and Cows Daily Challenge when you want a shared puzzle.
Bulls and Cows Strategy Tips
Start with a balanced first guess using four different digits. Then compare each A/B clue with your previous guesses instead of guessing randomly. Good Bulls and Cows strategy is about eliminating impossible digits, testing positions, and keeping notes until only one code remains.
FAQ
What do A and B mean in Bulls and Cows?
A means a digit is correct and in the correct position. B means a digit is correct but in the wrong position. For example, 1A2B means one exact match and two misplaced matches.
Is Bulls and Cows the same as 1A2B?
Yes. 1A2B is another common name for Bulls and Cows. Both names describe the same number deduction game based on A/B clues.
Is Bulls and Cows the same as Guess the Number?
They are related but not always identical. Bulls and Cows is a specific code-breaking version of a number guessing game, where every guess returns structured A/B clues.
Why are repeated digits not allowed?
This version uses 4 unique digits to keep clues clear and beginner friendly. Unique digits make it easier to reason from each A/B clue.
What is a good first guess in Bulls and Cows?
A good first guess uses four different digits, such as 1234 or 0275. The goal is not to guess the answer immediately, but to collect useful clue information.
Can I play a daily Bulls and Cows challenge?
Yes. The Bulls and Cows Daily Challenge gives all players the same shared puzzle for the day, so results are easier to compare.
Recommended Bulls and Cows Guides
How to Play Bulls and Cows
Learn A/B clues, 4-digit unique codes, and the core elimination strategy.
How Daily Challenges Work
Understand shared daily puzzles, score submission, and result comparison.
How to Use the Daily Archive
Review past puzzles, hidden codes, and historical challenge records.
Bulls and Cows Daily Archive
Browse historical Bulls and Cows daily dates, scores, and archive data.