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Hard fill-in

A hard fill-in is a bigger grid with more words of each length, so you lean harder on the crossings. It still fits exactly one way, printed on page two.

A bigger grid holds more words to place. Every puzzle fits exactly one way.

15×15 grid. Fit all 14 words into the grid so every crossing agrees.

Two pages: the empty grid with its word bank, and the filled answer. Every puzzle fits one way, checked by the same engine as our KDP studio.

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This makes one puzzle. Sign up to turn it into a full Fill-in book for Amazon KDP: hundreds of graded puzzles at any trim, as print-ready PDFs.

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Preview

How to solve a fill-in

Fit every word from the list into the grid so that all the crossings agree. There are no clues: the words and the shape are what you have.

The method

  1. 1Start with the rare lengths. Count how many slots and how many words there are of each length. A length with only one word has only one home, so place it first.
  2. 2Work the crossings. Every white square where two slots meet must hold the same letter in both words, which rules most candidates out fast.
  3. 3Cross words off as you go. Each word is used once. Strike it from the list when placed, so the remaining choices shrink.
  4. 4Let one letter cascade. A placed word fixes letters in every slot it crosses, which often forces the next word, and the next.
The one rule
Every word from the list goes in once, and all crossings agree.
What the answer page shows
The fully filled grid is printed at the back.
How the grades differ
Bigger grids hold more words and more crossings to track.
Good for
Solvers who like a crossword without the trivia.

Making a whole fill-in book?

This page makes one puzzle. To publish a book on Amazon KDP, the KDP fill-in maker generates hundreds of graded puzzles from a themed word bank, as a print-ready 300 DPI interior and solutions PDF.

More printable fill-in puzzles

See every printable fill-in

Questions

Are these hard fill-in free to print?
Yes. Generate the puzzle above and print it with its answer, at no cost and with no sign-up.
Does every puzzle fit one way?
Yes. Every puzzle is generated and checked so the word bank fits the grid exactly one way, verified before it prints. The answer is on the second page.
Can I make a fill-in book to sell on KDP?
Yes. The free tool makes one puzzle. The KDP fill-in maker generates hundreds of graded puzzles from a themed word bank, at any KDP trim, as a print-ready 300 DPI interior and solutions PDF.

Publish a fill-in book

Hundreds of graded puzzles, any KDP trim, print-ready PDFs. Start free.