BergPuzzlesMysterymoo
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Puzzle guide
About Mysterymoo
Mysterymoo is a free online Bulls and Cows game. Use logic to crack a secret four-digit code made from unique digits.
In this code-breaking number game, each bull means a correct digit is in the correct position, while each cow means a correct digit is in the wrong position. You have ten attempts to find the code.
Rules at a glance
- Enter a guess using 4 different digits.
- Submit it to learn how many bulls are in exact positions and how many cows are correct digits in different positions.
- Use the clue counts, history annotations, and optional digit locks to test your deductions.
- Find all 4 digits in their exact positions within 10 attempts.
Puzzle options
- Play
- Unlimited puzzles
- Code
- 4 unique digits, 10 attempts
- Typical time
- 5–10 min
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