Number Guessing Game
I’m thinking of a number. Use the higher-or-lower hints to find it in as few guesses as possible.
How to Play
- Choose a range: 1–50, 1–100 or 1–1000.
- Type a guess and press Guess (or Enter).
- The game tells you whether the secret number is higher or lower.
- Keep guessing until you find it. The Range box shows where the number can still be.
Tips & Strategy
- Always guess the middle of the remaining range — that halves the possibilities every time.
- With halving, 1–100 never takes more than 7 guesses and 1–1000 never more than 10.
Frequently Asked Questions
Yes, it is picked with your browser's cryptographic random number generator.
Best scores are stored only in your browser's local storage on this device. They're never sent to a server, and clearing your site data resets them.
No. The game runs entirely in your browser — nothing to install and no account. Once the page has loaded it keeps working even if you go offline.
More Games
More quick games that run in your browser.
Word Guess
gamesA free Wordle-style word game: guess the hidden five-letter word in six tries. New daily word plus unlimited mode.
Rock Paper Scissors
gamesPlay Rock Paper Scissors online free against the computer. Single rounds or best of 3 or 5, plus a Lizard–Spock variant.
Reaction Time Test
gamesTest your reaction time online free. Click as soon as the screen turns green — five rounds averaged, best average saved.
Memory Match
gamesPlay Memory Match online free: flip cards and find all the matching pairs in as few moves as possible. 4×4 and 6×6 boards.