What is Numbun?
A daily number deduction puzzle inspired by Bulls and Cows / Mastermind. Guess a secret 4-digit number using only + and - clues. It belongs to the math family of daily games: one shared puzzle per day for every player.
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About Numbun
A daily number deduction puzzle inspired by Bulls and Cows / Mastermind. Guess a secret 4-digit number using only + and - clues.
Numbun is free to play in your browser — no download and no account needed. Like every good daily game it serves everyone the same challenge each day, so you can compare results with friends and keep your streak alive. Come back tomorrow for a fresh round.
How to play
- Study the numbers or equation on the board.
- Enter a calculation or answer that satisfies the rules.
- Feedback after each try shows which digits and operators are correct.
Tips & strategy
Write the target out and work backwards from the result — small operators and digit placement matter more than big numbers.
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