The Nano Crossword
Sixteen squares, eight words, no black squares: a crossword solved in seconds.
Every day: One open 4x4 crossword a day with no black squares, the same for everyone: eight interlocking four-letter words. New puzzle: Midnight US Eastern Time.

The Nano Crossword is a 4x4 crossword with no black squares at all. Every row and every column is a four-letter word, so sixteen squares carry eight interlocking answers, and most solvers finish in well under a minute. A new grid comes every day at midnight Eastern.
About The Nano Crossword
The Nano is the smallest crossword on Greatest Games: a wide-open 4x4. With no black squares, every row and every column is a four-letter word, and every square is checked twice, once by its across answer and once by its down. That makes it forgiving to solve, since each letter you are sure of helps two answers, and very hard to build.
Play works like any crossword: tap a square and type, tap again or press space to switch between Across and Down, and use Tab or the clue lists to move. Check and Reveal help if you get stuck. Most players finish in under a minute.
The Nano Crossword is one of the daily games on Greatest Games, a site of word and logic puzzles. A new puzzle goes up every day at midnight US Eastern, the same for everyone, and it plays free in the browser with no account or download. A free account opens the The Nano Crossword archive of every past puzzle by date, and the site also has a 5x5 Mini and a 7x7 to 9x9 Midi.
How to play The Nano Crossword
- Open The Nano Crossword on greatest.games.
- Tap a square and type a four-letter answer.
- Switch between Across and Down with another tap or the space bar.
- Use each letter you are sure of to check its crossing word.
- Fill all sixteen squares.
Tips
- Every square serves two words, so solve the clue you know best and build out.
- If two answers fit a row, the columns decide.
- Speed comes from not hesitating; type and correct rather than waiting.
- Move on to the Mini or Midi for a longer solve.
Questions
Is it always a 4x4?
Yes, a fresh open 4x4 every day at midnight Eastern, the same for everyone.
Why are there no black squares?
That is the design: every row and column must be a word, so every square is checked twice.
When does The Nano Crossword reset?
Every day at midnight US Eastern Time, with the same puzzle for everyone.
Is The Nano Crossword free?
Yes. It plays free in the browser with no account. A free account unlocks the archive of past puzzles.
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