A Word Puzzle With No Words In It
Here is a puzzle you can sell in Germany, Japan, Brazil and Poland without translating a single thing.
Number Fill is a crossword grid with no clues and no letters. The solver gets the grid and the complete bank of numbers printed right beside it, grouped by how many digits they have, and the job is to fit every one of them in so that every crossing agrees.
It is pure shape and logic. A nine year old, a grandparent and a solver who speaks none of your language all understand the job without a word of explanation: every number on the right goes somewhere in the grid on the left.
For you it is the easiest interior in your catalog to produce. There is no dictionary to download and nothing to wait for: the digits are generated on the spot, so a 21 by 21 board with 150 entries appears as fast as a 9 by 9, and the whole run happens on your machine with the internet switched off.
Demo files are watermarked. Paid files are watermark free. Try the free demo.
The Logic Title That Travels
Every publisher hits the same ceiling on word books: the market is one language wide. A Number Fill book has no ceiling like that. The same PDF is a product in every territory Amazon sells in, and the same worksheet works in an ESL classroom, a special education room, and a senior centre where reading is the hard part and reasoning is not.
Solvers who love this puzzle know it as Number Fit, and the format reads instantly on a listing thumbnail: a familiar crossword shape, filled with digits. It does not look like the forty sudoku books next to it, and it does not need a rule paragraph on the back cover.
The board underneath is honest. Every entry is at least three digits, no entry starts with a zero, and every number in the bank is distinct. The solution page shows every cell filled.
Grids From 5 by 5 up to 21 by 21, Generated Instantly
The Creator opens at 13 by 13, the classic board: around 130 white cells and about 60 entries, weighted towards three digit numbers with a solid run of longer ones. It is a proper sit down puzzle and a natural fit for a 6 by 9 page.
Drop to 9 by 9 and you get roughly thirty entries, a warm up sheet a child finishes in one sitting. Push to 21 by 21 and the board carries around 345 white cells and about 150 entries, a genuine centrepiece puzzle that fills a large print spread. Every one of them generates instantly, because there is no word list to search.
Set a separate height and the grid turns rectangular, so you can match the shape to the trim instead of squeezing a square onto a tall page. Pick your symmetry: Rotational 180 for the traditional look, mirror horizontal or vertical, or Rotational 90 and Diagonal on a square board when the pattern of black squares is part of the design.
Starter hints put a few single digits on the board before the solver begins, four by default, up to twenty. Every white cell sits in an across entry and a down entry, so each starter digit constrains two numbers at once, which is exactly the toehold a beginner needs. They print tinted, and every one of them is still listed in the bank.
Turn the Digits Into Pictures with Number Fill Creative
This is where the puzzle stops being a number puzzle.
The digits in a Number Fill carry no meaning at all. They are ten distinct markers, and nothing in the logic cares what they look like. So on Number Fill Creative, you swap them for something else and the puzzle keeps working perfectly: letters, coloured shapes, or your own images.
Load ten pictures of farm animals and you have a preschool logic book where a child matches a cow to a cow. Use coloured shapes and you have a puzzle that works before a child can read at all. Use letters and you have a different looking word style grid with none of the vocabulary load. Bring your own image set and the book carries your characters, your brand, your seasonal art.
The bank re skins along with the board, which is the part that makes it a real product rather than a trick: the solver sees picture tiles in the grid and matching picture tiles in the bank, so the puzzle reads exactly the way the digit version does. Bring at least ten distinct items and the Creator does the rest.
The Number Bank Is Part of the Page, Not an Afterthought
The bank always prints on the image, so every Number Fill you export is a complete, standalone puzzle. Hand someone the file and they can solve it. No second page, no separate answer list to keep track of, no book page required to make sense of it.
It sits below the grid unless you move it. Put it to the right and the page reads as a wide spread. Put it above for a worksheet header. Set the column count anywhere from one to six, or leave it on auto and let the layout balance the bank against the board.
Entries are grouped by digit count and sorted, separated by blank cells, so scanning for “the six digit ones” is effortless. That is what keeps a 150 entry board from feeling like work.
From One Puzzle to a Whole Book
Every edition builds ready to print books with Instant Puzzle Books: the puzzles you just generated, poured into the trim, margins and typography you already publish in, complete with a title page, a table of contents, and a footer on every puzzle telling the reader which page its solution is on. Out comes a PDF or a PowerPoint.
Number Fill Creative adds Puzzle Book Studio Creative: full book design on a collection, so you take control of the layout, rebuild, and keep every page in the format you ship.
Number Fill Productivity adds Time Saver. Set up several rows in one batch, each with its own size, shape and quantity, and produce them all in one pass. Then full Puzzle Book Studio assembles those separate sets into a single book, so a long interior can climb from 9 by 9 warm ups to 21 by 21 monsters instead of running one setting front to back.
Output Formats and Publishing Options
| Number Fill | Creative | Productivity | |
|---|---|---|---|
| Grids from 5 by 5 to 21 by 21, square or rectangular, six symmetry modes | ✓ | ✓ | ✓ |
| Starter digits from 0 to 20, generated instantly and offline at any size | ✓ | ✓ | ✓ |
| Export as JPG, PNG, SVG and PDF, puzzle and matching solution | ✓ | ✓ | ✓ |
| Instant Puzzle Books, with title page, contents and solution cross references | ✓ | ✓ | ✓ |
| Content variation: letters, coloured shapes, or your own images instead of digits | ✓ | ✓ | |
| Style control over the entry font, canvas, cell fill, cell borders and the black squares | ✓ | ✓ | ✓ |
| Puzzle Book Studio Creative, full book design on one collection | ✓ | ✓ | |
| Time Saver, batch several complete sets in one pass | ✓ | ||
| Puzzle Book Studio Productivity, mixed books from several collections | ✓ | ||
| JSON export for your own apps and workflows | ✓ | ||
| Sell the finished books, worksheets and packs you make to your own readers | ✓ | ✓ | ✓ |
| Sell or supply the generated puzzles to other publishers and sellers | ✓ | ||
| + Interactive on Creative or Productivity: publish the digit puzzles as playable web games on your own site | ✓ | ✓ |
Put a Playable Number Fill on Your Own Website
A puzzle with no language in it is the perfect thing to put in front of a stranger, and on Number Fill Creative + Interactive or Number Fill Productivity + Interactive you can.
Publish a set to your own site through the free Puzzle Maker Pro Online WordPress plugin and visitors solve the digit puzzle right in the browser: click a square and tap a digit on the keypad, or drag a number out of the bank onto a slot the right length, then hit Check. No download, no sign up, no explanation needed.
Publish it as a puzzle list and visitors pick one from a dropdown. Publish it as a leveled game and the set becomes a path: levels unlock in order, progress and stars save in the visitor’s browser, and the completion screen shows your own message and your own button, so the reader who just finished three free puzzles is looking at “get the full book” at the exact moment they want more.
Teaching with it? Rename the caption from Level to Lesson and the same path becomes self paced practice a student works through in order.
Play a Number Fill in your browser
Which Edition Should You Choose?
Number Fill is the one when digits make the book you are making today. Every size up to 21 by 21, every shape, every symmetry mode, the starter setting, all four file formats, and Instant Puzzle Books to build the interior. Everything you make with it is yours to sell.
Number Fill Creative is the one the moment you want something other than digits on the page: letters, coloured shapes, or your own pictures, re skinning the board and the bank together. It also hands you Puzzle Book Studio for full book design on the collection.
Number Fill Productivity is the one when you are producing a catalog rather than a book. Time Saver batches several setups in a single pass, full Puzzle Book Studio builds them into mixed books, JSON export feeds your own apps and workflows, and you may supply the puzzles you generate to other publishers and sellers.
Add Interactive to Creative or Productivity when readers should play the digit puzzles on your own site.
You can move up to any higher edition after you buy, up the ladder or by adding Interactive on top, so start with what fits the title in front of you.
Who This Is For
Publishers selling into more than one country, who want an interior that needs no translation, no localisation, and no second edition.
Teachers and therapists working with pre readers, ESL learners, or anyone for whom the reading is the barrier and the reasoning is not. Nothing on the page has to be decoded.
Creators of children’s activity books, who want the picture version: ten of your own images, a grid a five year old can solve, and a bank that shows the same pictures back.
Site owners and course creators who want a puzzle a first time visitor can start without reading an instruction, playable on the page.
If you have been passing on logic titles because they all look like sudoku, this is the one that does not.
Try It Before You Buy
Make one before you spend anything. The free demo generates a real Number Fill, grid, bank, starters and solution, so you can see the page you would be selling. Demo files are watermarked and a run makes one puzzle; paid files are watermark free.
Try the free demo, then pick the edition that fits above.
Licensing and Commercial Use
Number Fill and Number Fill Creative both let you sell the finished books, worksheets, and packs you make to your own readers and customers, on KDP, Etsy, Teachers Pay Teachers, or your own store. One time commercial use licence. Watermark free.
Number Fill Productivity includes that, plus you may sell or supply the generated puzzles to other publishers and sellers.
Every edition carries the same permission to sell. What changes as you move up is what you can make.
Product Details
| Product | Puzzle Maker Pro – Number Fill |
| Editions | Number Fill; Number Fill Creative; Number Fill Creative + Interactive; Number Fill Productivity; Number Fill Productivity + Interactive |
| Platform | Windows desktop |
| Puzzle rule | An interlocking crossword style grid with no clues, printed with the complete bank of numbers grouped by digit count. Every entry is at least three digits, no entry starts with zero, every number is distinct, and every crossing agrees. |
| Grid | Width 5 to 21; height square or 5 to 21 for a rectangle. Six symmetry modes; Rotational 90 and Diagonal on square boards. |
| Starter hints | 0 to 20 scattered single digits, tinted on the grid and still listed in the bank. Four by default. |
| Number bank | Always printed on the puzzle image. Below the grid by default; above, left or right on request, in 1 to 6 columns or auto. |
| Content variation | Number Fill Creative and up: letters, coloured shapes, your own images, or an image list instead of digits, re skinning the grid and the bank together. At least ten distinct items. |
| Quantity | Set per run; Time Saver on Productivity batches several setups at once |
| Output formats | JPG, PNG, SVG, PDF: puzzle image and matching solution image. Demo output is a watermarked image. |
| Solution pages | Yes. Every puzzle has a matching solution image with every cell filled. |
| Puzzle books | Instant Puzzle Books on every edition. Puzzle Book Studio on Creative (one collection) and Productivity (several collections in one book). Title page, contents and solution cross references on every edition. |
| Web play | Publish sets of the digit puzzle to your own site as a puzzle list or a leveled game, on Creative + Interactive or Productivity + Interactive |
| JSON export | Number Fill Productivity |
| Time Saver | Number Fill Productivity |
| Internet required | No. The digits are generated on your machine, so every size works offline on every edition. |
| Commercial licence | Sell the finished books, worksheets and packs you make to your own readers and customers. Productivity adds selling or supplying the generated puzzles to other publishers and sellers. |
| Upgrades | You can move up to any higher edition later |
| Free demo | Yes |
| Delivery | Immediate, in your member area |
Questions Before You Buy
Is there a free demo?
Yes. The free Puzzle Maker Pro demo makes a real Number Fill so you can see the grid, the bank and the solution before you buy. Demo output is watermarked and limited to one puzzle per run. Paid files are watermark free.
Can I upgrade later?
Yes. You can move up to any higher edition after you buy, and you can add Interactive on top of Creative or Productivity. Start with what fits the book you are making today.
What exactly is a Number Fill?
It is a crossword shaped grid with no clues and no letters. Every number that belongs in the grid is printed in a bank beside it, grouped by digit count, and the solver works out where each one fits so that every crossing agrees.
Is there any arithmetic in it?
None. The digits are just markers. Nothing is added, nothing is sequenced, and nothing has to be calculated. It is a fitting puzzle, which is exactly why it works for solvers who avoid maths puzzles.
Does it need a different edition for a different language?
No. There is nothing to translate. The same file sells in every market you publish into.
Can I use pictures instead of numbers?
Yes, on Number Fill Creative and up. Supply at least ten distinct images, colours or letters and the grid and the bank both use them, so the puzzle reads the same way it does with digits.
How big can the grids get?
From 5 by 5 up to 21 by 21, square or rectangular. A 21 by 21 board carries about 345 white cells and 150 entries, and it generates as fast as the small ones.
What files do I get?
A puzzle image and a matching solution image for every puzzle, as JPG, PNG, SVG or PDF. Instant Puzzle Books turns those pairs into a finished interior as PDF or PowerPoint.
What does Productivity add?
Time Saver, which batches several different setups in one run, full Puzzle Book Studio for mixed books, JSON export for your own apps and workflows, and the right to sell or supply the puzzles you generate to other publishers and sellers.
What does Interactive add?
Web play. You publish a set to your own site through the free WordPress plugin and readers solve the puzzles in the browser, as a list or as a leveled game. Buy it on top of Creative or Productivity.
Can I sell the books and worksheets I make?
Yes. Number Fill and Number Fill Creative both let you sell the finished books, worksheets and packs you make to your own readers and customers. Number Fill Productivity includes that, plus you may sell or supply the generated puzzles to other publishers and sellers.
Do I need to be online?
No. Number Fill generates entirely on your Windows PC, at every size and on every edition.
The Puzzle Book That Does Not Need a Translator
Without a format that crosses a language border, every title you publish is limited to the readers who speak it, and the same book has to be rebuilt for every market you want to enter.
Six months from now your catalog has a Number Fill line running in four territories from one set of files: a large print edition, a children’s picture edition on your own artwork, and a classroom pack with an answer key on every sheet.
Start by making one. Try the free demo, then pick your edition above.
