KnowessKnowess
Number Deduction
From guess to know.
Knowess is a modern take on the classic deduction game. Test your mind against 2 feedback modes and prove your logical prowess.
2 Modes
Any Match or Exact Match.
Custom Rules
Toggle repeating digits.
Custom Length
Play with 3 to 10 digits.
Knowess
Number Deduction Game
Designed for Thinkers
Everything you need to challenge your brain, wrapped in a clean, distraction-free interface.
Highly Customizable
Choose your number length from 3 to 10 digits. Decide whether digits can repeat. Tailor the game to your exact skill level.
Two Feedback Modes
Play "Any Match" to know how many digits are correct overall, or "Exact Match" for strict position-based feedback.
Track Your History
Your previous guesses and their feedback are kept in a neat, scrollable list so you can deduce the answer systematically.
How to Play
The goal is to guess the secret number in the fewest attempts possible using logical deduction.
Set Your Rules
Select the number of digits, choose your preferred feedback mode, and decide if digits can repeat.
Make a Guess
Enter a number. The system will evaluate your guess against the secret number based on your chosen mode.
Use the Feedback
Analyze the feedback from your previous guesses to eliminate possibilities and narrow down the exact number.
Feedback Modes Explained
Any Match
Tells you how many digits in your guess exist in the secret number, regardless of where they are placed.
Result: 3 Matches (1, 2, 4)
Exact Match
Tells you how many digits are correct in BOTH value and position.
Result: 1 Exact Match (The 2)
Frequently Asked Questions
Can the secret number start with a zero?
Yes! The secret number is treated as a sequence of digits, not a mathematical integer. So '0123' is a valid 4-digit secret.
What happens if I guess a repeating digit in 'Any Match' mode?
If the secret number is '1234' and you guess '1155', you will get 1 Match. The system matches each digit in the secret number at most once.
Is there a limit to how many guesses I can make?
No, you can take as many attempts as you need. That said, the Daily Challenge records your attempt count and time, so it's worth trying to solve it in as few guesses as possible.
When does the Daily Challenge reset?
A new puzzle is available every day at midnight UTC. A countdown timer on the Daily Challenge page shows exactly how long until the next challenge.
What are the clues in the Daily Challenge?
Each day you receive 4 clues about a secret 4-digit number. Each clue tells you how many digits are correct and whether they are in the right position. Use them to narrow down the answer before you start guessing.