Numberdle — A New Daily Number Game

How Today's Number Game Works

Numberdle hides one six-digit number every day and gives you eight tries to name it. Every player sees the same number on the same calendar day, so the board above is the same board your friends are staring at right now.

Type any six-digit number and press Guess. The board answers in three ways at once, and learning to read all three together is the whole skill of the game:

1. A direction arrow

   An up arrow means the hidden number is larger than your guess, and a down arrow means it is smaller. This alone halves the range you need to worry about with every guess.

2. A closeness band

   Next to the arrow you get a word for how near you landed — from Cold when you are more than ten thousand away, through Cool, Warm and Hot, up to Scorching when fewer than ten numbers separate you from the answer.

3. A digit-by-digit readout

   Each of your six tiles is coloured independently. A teal tile is the right digit in the right position. A violet tile means that digit is in the hidden number but sits somewhere else. A slate tile means the digit does not appear at all.

Those three channels pull in different directions, which is what keeps the puzzle interesting. The arrow tells you about magnitude; the tiles tell you about composition. A guess that is numerically far away can still be enormously informative if it lights up four violet tiles. The full ruleset, plus five tactics for cutting your average down, lives on how to play Numberdle.

Your Rarity Score, Explained

Finishing is only half the result. When the round ends, Numberdle scores it and hands you one of six rarity tiers. The score adds two things together.

The number's own character. Some six-digit numbers are structurally interesting — they read the same backwards, they are prime, their digits climb in a run, the same digit turns up four times. Each of those properties is worth points, and the rarer the property, the more it pays. This part of the score is identical for everyone that day, because it describes the number rather than your play.

How efficiently you got there. Solving in three guesses is worth far more than scraping home on the eighth. This part is yours alone, and it is why two players can pull different tiers out of the same number.

One detail worth knowing: if you run out of guesses, your tier is capped partway up the ladder no matter how exotic the day's number turned out to be. The top tiers are reserved for numbers you actually caught.

What Makes a Roll Rare

Rarity here is not a mood — it is counted. There are exactly 900,000 six-digit numbers, so any property can be measured by asking how many of them have it. These are the properties Numberdle looks for, roughly from common to scarce:

• No zeros anywhere. Just over half of all six-digit numbers qualify, so this is the gentlest bonus on the board.
• Six different digits. No digit repeats. Common enough to see regularly, uncommon enough to be worth noting.
• A digit sum that divides by nine. Add the six digits together and you land on a multiple of nine — roughly one number in nine does.
• Prime. About 6.6% of six-digit numbers have no divisor but themselves and one.
• All digits even, or all odd. Each covers well under one percent of the range.
• Palindromic. The number reads identically in both directions, such as 418814. There are only 900 of these in the entire six-digit range — one in a thousand.
• A run of identical digits. Three in a row is notable; five or six in a row is extraordinary.
• Digits in a consecutive climb or fall. Think 345678 or 765432. There are only a handful of each.
• A repeating half, where the first three digits appear again as the last three, such as 729729.
• A perfect square. Fewer than a thousand six-digit numbers are the square of a whole number.

A number can hold several of these at once, and that is where the high tiers come from. 888888 is simultaneously a palindrome, a six-long run, a repeating half, zero-free and entirely even — a genuine once-in-a-long-while board. If the mathematics of random draws is the part you enjoy, the RNG game explainer goes further into how randomness is generated and why a fixed daily seed is still fair.

Daily Streak & Stats

Play on consecutive days and your streak climbs. Miss a day and it resets to one the next time you solve — the point of the streak is the daily habit, not a permanent score to defend.

Alongside the streak, the result card tracks:

• Guesses used today, out of the eight you are given.
• Your best solve, the fewest guesses you have ever needed.
• Puzzles played, a running total of rounds finished.

All of it is kept in your browser's own storage. There is no account, no sign-in and no server holding your history, which does mean two things worth knowing: your stats are specific to that browser on that device, and clearing site data clears them. That is the trade for a game that never asks you to register.

More Daily Games

Numberdle is one puzzle a day by design — when you have finished today's number, here is the rest of what is on the site.

• How to play Numberdle

  The complete ruleset, how to read every hint, and five tips that genuinely lower your guess count.

• RNG game explainer

  What a random number generator actually is, why randomness is fun to play against, and how today's number was produced.

• Random number generator

  A real tool, not a game: pick any range and draw numbers, dice rolls or coin flips using your browser's cryptographic randomness.

• Notes from the build

  Writing about number puzzles, mental arithmetic and what goes into making a daily game. Start with how daily number games train your mental math.

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