NumberGlyph

Daily number puzzle — brain training.

Puzzle
— •
Easy (4 digits)
Σ
—
sum
Shape
—
a ? b ? c …
O/E
—
odd/even slot
P
—
prime digits
U
—
unique
Σ²
—
sum of squares
Tip: tap a card for a hint.
Streak
0 (best 0)
Next
—

Quick tutorial

1) Goal

Guess the secret number in 6 guesses. Each guess gives you tiles + a compact fingerprint.

🟩 right digit + place 🟨 right digit, wrong place ⬛ not in the number

2) Two clues you always get

Σ = sum of digits Shape = compares each digit to the next

Shape mapping: > means “down”, < means “up”, = means “same”.

Example (4 digits): 6 0 8 1 6>0, 0<8, 8>1 → ><>

3) Optional cards (tap to reveal)

These start hidden. Tap a card to reveal it.

O/E = odd/even by slot (e.g. EEEO) P = how many prime digits (2,3,5,7)
U = unique digits count Σ² = sum of squares (e.g. 6²+0²+8²+1² = 101)

Reveals just give you more info. They don’t change the answer.

4) One quick example

Imagine the secret is 6081.

Fingerprint shows: Σ = 15 Shape = ><>

Now guess 6012:

Guess: 6 0 1 2 Tiles: 🟩🟩🟨⬛

Keep guessing and use the fingerprint to narrow it down.

5) Ready?

Start with a guess that gives you lots of information. If you want, tap O/E or Σ² early for faster narrowing.

Open full help

🎉 Boom — nice!

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