Every past daily BOOKENDS, newest first. The archive starts on October 28, 2026, the first day of Brainiac Play. A past puzzle never changes, so the hidden word is the one everyone had that day.

The pool of possible words grows through the week. Monday picks from the 250 most common words of its length and Sunday from the whole list of about a thousand per length, so Sunday takes a few more guesses. Archive puzzles do not count toward your streak.

How to play BOOKENDS

1. Type a real word and press Enter, or tap Place. Any word of 3 to 12 letters counts, not only words with the right length.
2. If your word sorts before the hidden word in the dictionary, the left bookend moves to it. If it sorts after, the right bookend moves to it. The hidden word is always strictly between the two bookends.
3. A word that is already outside the bookends is not counted as a guess. You get a nudge and can try again.
4. The counter shows how many everyday words of the right length are still between the bookends. Aim for a word near the middle of the gap: a centred guess is called sharp (green square), because whichever side the hidden word is on, it leaves the fewest words to search. When the bookends start with the same letters, those letters are locked in above the shelf.
5. When ten or fewer words are left the room goes red and the heartbeat starts. Think about what fits between the two bookends and name it.
6. Name the hidden word to win. Stars depend on how many guesses you took. A hint counts as two guesses: pick a Clue (what the word means, with the word blanked out), a Letter (reveals one letter) or the Middle word (a good guess). Show the word ends the round with no stars.

A worked example: the first four guesses

Say the hidden word has five letters and the shelf holds 600 words. You type MONEY. It sorts before the hidden word, so the left bookend moves to MONEY and about half the words disappear.

Next you try SUGAR. It sorts after, so the right bookend moves to SUGAR. Now the word is between MONEY and SUGAR, maybe 150 words. A word like PLANT sits near the middle of that stretch, and so on down to one word.

Latest puzzles

Puzzle	Date	Recap
The first BOOKENDS puzzle comes out on November 7 (New York time).

All past puzzles