The board is a crossword-style shape. Every space holds a five-letter word, and every word starts misspelled. Pair each word with a neighbor and trade one letter between them so both become real words.

1. Pick two neighbors. Tap a word, then a word directly above, below, left or right of it. Diagonals don't count.
2. Trade one letter. Choose one letter from each word. They swap places, and you see both new spellings.
3. Join them. If both words are valid, join the pair. The two words lock together and can't trade with anyone else.
4. Pair the whole board. Every word needs a partner. A word whose neighbors are all taken is stranded, so plan your pairs.
5. Start at the ends. A word at the tip of an arm has only one neighbor, so its partner is decided for you. Work inward from there.
6. Crack the rooms. Every board has at least one block of words the shape alone can't settle. It could pair up more than one way, and only the letters tell you which.

What counts. Words must be in the game's dictionary. Proper names, abbreviations, and words with hyphens or apostrophes don't count.

Preview and undo. Previews are free. Undo breaks the last pair and restores both words. There's no time limit.

Daily boards. Easy, Medium and Hard each load today’s board, the same one every player gets. Each daily board can be played once, and new ones arrive at midnight US Eastern time. With the full version, New board generates an unlimited number of practice boards. Practice boards are just for fun and don’t count toward your stats.

Sharing. Share turns a finished board into a grid that shows how you solved it without giving away any words.

Look around. Pick a partner. Make it fit.