How to Play

Make every line add up to ten.

Crazy10s is a two-player tile game, like Words With Friends with numbers. Place tiles on a shared board, and every line you touch has to add up to exactly 10. Quick to learn, hard to put down.

Free · No sign-up needed · Plays in your browser

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Try today’s Daily Puzzle · no sign-up

A Crazy10s game on a phone: Maya and Sam's board, three tiles placed for a 40-point move, and the Play button showing 40 pts

How it works

One rule, a lot of ways to use it.

4
4
6
0

One move, two lines: 4 + 6 = 10 across, 4 + 6 + 0 = 10 down.

1
Numbers, not letters
You hold seven tiles, 0 to 9. Build across or down: every line your move touches has to add up to exactly 10.
2
Score more than one line
Build off any tile on the board, yours or theirs. A single move can finish several lines at once, and that's where the big points are.
★
Wild tiles and bonus squares
A wild tile becomes any number you need. Bonus squares multiply a tile or a whole line, or add points on top, and each corner is worth an extra 50.
Read the full rules ›

Play anywhere, on anything

Laptop, tablet or phone: the same game, right in your browser.

The same Crazy10s game on a laptop, the whole board in view
The same game on a tablet
The same game on a phone
Nothing to installOpen it in any browser and play. Apps for iPhone and Android are coming soon.
Take your turn wheneverYour opponent doesn't need to be online. Games wait for you.
Your games follow youWith a free account, start on your laptop and finish on your phone.
New every day

The Daily Puzzle

Everyone gets the same board and the same seven tiles. You have three tries and your best score counts, so see how you stack up against everyone else today. No account needed.

Play today’s puzzle
The Daily Puzzle on a phone: second try, a 102-point move ready to submit, today's top score 118

Ways to play

Against a friend, a stranger or the Computer.

Random Match
Get paired with another player in one tap. Take your turn now or later.
Invite a Friend
Send a link by text or email. They tap it, pick a name and they're in, with no sign-up.
vs Computer
Easy, Medium or Hard. Hard plays the best move it can find on the board.
Practice
Play both sides yourself and learn the board at your own pace.
Coming soon

Crazy10s on your phone

Apps for iPhone and Android are on the way: the same game, with a notification when it's your turn. Sign in with your free account and every game comes with you.

App StoreComing soon
Google PlayComing soon
See the app ›
The Crazy10s app on a phone: your games, an invite from a friend and the Daily Puzzle

Love Scrabble, Words With Friends, or Sudoku?

Crazy10s keeps the part of Scrabble and Words With Friends you already love, building on a shared board tile by tile against a real opponent, and swaps letters for numbers. If Sudoku or Kakuro is more your speed, it rewards exactly that kind of logic. And if you can count to ten, you can play: no vocabulary, no spelling, nothing to translate, so you can play someone on the other side of the world.

Ready to play?

Free, no sign-up, on any device.

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