Free daily number puzzle: Wordle for digits
NumberGlyph is a free daily number puzzle you can play online. Think of it like Wordle, but instead of guessing a word, you're hunting for a secret number. You get 6 guesses, tile feedback, and mathematical clues to narrow it down. New puzzle every day. No account needed.
What is NumberGlyph?
NumberGlyph is a logic puzzle where you guess a secret number in 6 tries. After each guess, you get feedback that tells you which digits are correct, which exist but are in the wrong position, and which aren't in the number at all.
But here's what makes it different from other number guessing games: you also get mathematical clues. Before you even guess, you know the sum of all digits and the "shape" of the number (whether each digit is bigger or smaller than the next). These constraints turn random guessing into logical deduction.
How to play
The rules take about 30 seconds to learn:
1. Check the clues
You always see Σ (sum of digits) and Shape (the up/down pattern). These tell you a lot about the number before you even guess.
2. Make a guess
Enter a number that fits the clues. You get 6 tries total. Each guess gives you Wordle style tile feedback.
3. Use the feedback
Green means right digit, right spot. Yellow means the digit exists but it's in the wrong position. Gray means it's not in the number.
The clue system explained
The clues are what make NumberGlyph feel like a proper logic puzzle instead of just guessing. Here's what each one tells you:
Σ (Sum)
The sum of all digits. If Σ = 15 for a 4 digit number, you know the digits add up to 15. This immediately rules out most possibilities.
Shape
Shows the pattern of how digits compare. > means "goes down", < means "goes up", = means "same". For 6081: 6>0, 0<8, 8>1 gives shape ><>.
You can also reveal optional clues by tapping the cards:
O/E
Shows whether each position is odd or even. For 6081: E E E O (even, even, even, odd).
P (Primes)
Counts how many digits are prime (2, 3, 5, or 7). Helps you rule out or confirm certain digits.
U (Unique)
How many different digits appear. U=4 means all digits are different. U=2 means only 2 unique digits (with repeats).
Σ² (Sum of squares)
Sum of each digit squared. Helps distinguish numbers that have the same regular sum but different digit distributions.
Three difficulty modes
NumberGlyph has Easy, Medium, and Hard modes. Each is a different puzzle for the day.
Easy (4 digits)
Great for learning the mechanics. Most solvable in 3 to 4 guesses once you understand how the clues work.
Medium (5 digits)
The sweet spot. More complex but still very manageable. Usually takes 3 to 5 guesses for experienced players.
Hard (6 digits)
Properly challenging. More digits means more possibilities. The optional clues become much more valuable here.
Strategy tips for number puzzles
Here's how to solve NumberGlyph puzzles more consistently:
Always match the Shape
Before you guess, check that your number follows the Shape pattern. If Shape is <<<, your guess must be strictly ascending.
Hit the sum
Make sure your guess adds up to (or close to) the Σ value. No point guessing 9874 if Σ is only 15.
Spread your digits
Use different digits in your first guess to gather maximum information. Guessing 1111 only tells you about one digit.
Use optional clues when stuck
Revealing O/E on guess 2 or 3 often breaks the puzzle open. It cuts your options roughly in half per position.
Why play a daily number puzzle?
Number puzzles train a different set of skills than word games. You're exercising working memory (holding constraints in your head), logical deduction (ruling out possibilities), and pattern recognition (spotting what fits the clues).
The daily format keeps it fresh. One puzzle a day means you can make it part of a routine without it becoming a grind. A quick mental rep with your morning coffee.
Research suggests that consistent mental exercise, even just a few minutes daily, can help maintain cognitive function over time. NumberGlyph is designed for exactly that: small, satisfying, sustainable.
NumberGlyph vs other number games
There are other number guessing games out there. Here's what makes NumberGlyph different:
I built NumberGlyph because I wanted a number puzzle that felt more like deduction than random guessing. The clue system is the key. It turns "guess a number" into "solve for the number that fits all constraints."
Play NumberGlyph now
Today's puzzle is ready. Pick a difficulty and see if you can crack it in 6 guesses.
More free daily puzzles
NumberGlyph is part of the GlyphVerse, a collection of free brain training games. If you like number puzzles, check out these:
OpGlyph
A mental math puzzle. Fill in the operators (+, −, ×, ÷) to hit a target number. Great for arithmetic practice.
Play →SudokuGlyph
Classic sudoku with a clean interface. New puzzle daily across three difficulty levels.
Play →ConnectGlyph
A connections style word puzzle. Find 4 groups of 4 words that share a hidden theme.
Play →Questions or feedback? DM me on X @numberglyph.