Crossword and Sudoku puzzles. Play solo, or challenge a friend.

How it works

1. Pick your puzzle and difficulty, then give yourself a name. Nothing to install, and there is no account to create.
2. Play solo at your own pace, or send a friend the invite link — whoever opens it takes the second seat.
3. In a duel you take turns: choose a clue, then answer it or pass. A correct answer fills the shared grid and scores; a wrong guess costs points and reveals a letter.

What you can play

Themed crosswords

Every crossword is generated around a theme. Solve one alone with free hints whenever you want, or race a friend in Classic — where bonus words hide inside answers, shared words are public races, and the highest score when the grid is full takes it. Optional turn timers and a whole-game chess clock add the pressure.

Sudoku

Eight difficulties, from a 4×4 mini grid that needs nothing but single candidates up to grandmaster puzzles built around the swordfish. Pencil notes, undo, and unlimited hints throughout; the gentler tiers highlight matches and flag mistakes for you.