Mondo Knows Games
Number Guess
Mondo picks a number and you have a limited number of guesses to find it. After each guess he tells you whether his number is higher or lower, so the trick is to halve the range every time. It is a friendly introduction to how binary search works.
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How to play
- Mondo picks a whole number in the range shown.
- Type a guess and he tells you higher or lower.
- Find the number before you run out of guesses.
- Guess in the middle of the remaining range to find it fastest.
Controls
Type a number and press Guess, or press Enter.
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Questions people ask
- How do you play Number Guess?
- Mondo picks a whole number in the range shown. Type a guess and he tells you higher or lower. Find the number before you run out of guesses. Type a number and press Guess, or press Enter.
- Is Number Guess free to play?
- Yes. Number Guess runs in the browser for nothing: no download, no account and no sign-up. Number Guess sits on the Casual shelf at Mondo Knows, alongside guessing and numbers games.
- How long does a game of Number Guess take?
- Under a minute. It is rated easy, and type a number and press Guess, or press Enter. Your best score stays on your own device.
- Does Number Guess work on a phone?
- Yes. The board sizes itself to the screen, so Number Guess plays the same on a phone as on a desktop, and touch controls replace the mouse. Nothing needs installing.
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Everything runs in your browser. Scores and bests are stored on your own device, not on a server.