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Play the free online Guess the Number game. Guess a random number from 1 to 100, use higher/lower hints to narrow the range, and win in the fewest steps.
Current Range: 1 ~ 100
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Japanese Address Generator
Generate random fake Japanese addresses in valid formats, complete with zip codes, administrative divisions, and block numbers.

Random Chinese Address Generator
Quickly generate random, fake Chinese addresses complete with provinces, cities, districts, streets, and postal codes. Perfect for software testing and mock data generation.

German Address Generator
Generate random, properly formatted German addresses for software testing, data population, and privacy protection.

Random US Address Generator
Generate properly formatted fake US addresses for software testing, development, and data anonymization.

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Bored and looking for a quick challenge? The Guess the Number game pits your intuition and logic against the system in a race from 1 to 100. The system randomly generates a hidden target number. With each guess you enter, it instantly replies "Too high" or "Too low," helping you gradually zero in on the target. When you finally guess correctly, it displays your total number of attempts, giving you a clear look at your deduction efficiency. This tool is essentially a classic binary search decision-making exercise, as well as a fun brain teaser for your downtime.
You can only enter integers from 1 to 100; letters, symbols, and empty values cannot be submitted. Your attempt count is accurately tracked, and there are no cheat options to "skip" or "show answer" mid-game—treat it as a fair mental exercise. This tool runs entirely in your browser and does not upload your guess history or personal data, though you should still avoid entering any sensitive information. If you experience abnormal page lag, refreshing the page will reset the game (including losing your current progress). Under normal circumstances, you can start a new game at any time.
If you want to find the target number in the fewest attempts, the best strategy is the "binary search method": always guess the exact middle number of the current possible range. For example, if your first guess is 50 and the feedback is "Too low," the answer must be between 51 and 100, so your next guess should be 75. If the feedback is "Too high," the answer is between 1 and 49, so your next guess should be 25. By repeating this process, you are guaranteed to find any number between 1 and 100 in a maximum of 7 guesses. When using this as a logic training exercise, try tracking your average number of steps to see if you can consistently keep it under 5 or 6 attempts.