Sudoku GeneratorSimple User Guide Open the App

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Your complete, simple guide to Sudoku Generator

This guide shows every part of the app in the same order you will use it. You do not need computer experience. Follow one numbered step at a time.

Start the Guide Make a Book in 10 Minutes
1Choose puzzlesNumber, size, and difficulty
2Choose a lookColors, lines, and fonts
3Choose symbolsNumbers, letters, or your own
4Download filesOne picture or everything
01

The basics

Before you start

You only need a web browser and a mouse or touchpad. The app saves your choices while you work.

Click

Move the arrow onto a button, then press the left mouse button once.

Type

Click inside a white box, then type with your keyboard.

Choose

Click a box with a small arrow, then click the choice you want.

Move a slider

Click and move the round handle left or right to change a size.

Tip

If you are unsure, keep the ready-made choices. They are a good starting point.

Careful

Do not close the browser while a download says it is being prepared. You may leave the page after it says your progress is saved.

02

Always at the top

Know the top bar

These controls help you name your book, open saved books, see a preview, or start again.

Sudoku GeneratorPublishing Studio

Book name

Click the name and type a name you will remember. The small “Saved” message means your change is safe.

Start Over

Removes your books, finished puzzles, colors, fonts, and download choices, then gives you a fresh book. The quick tour will not appear again.

Quick Tour

Shows four short help cards inside the app. Use Back, Next, Skip Tour, or the × button.

Your Books

Opens your saved book list. You can create, open, move, or delete a book.

Preview

Opens the live example of the puzzle style you are making.

Web App Home

Opens the information page for Sudoku Generator.

03

App step 1

Choose Your Puzzles

A “puzzle group” is a group of puzzles that share the same size, difficulty, and layout.

1. Puzzles 2. Colors & Style 3. Numbers 4. Download
STEP 1Choose Your Puzzles
0150 puzzles · 9×9 · Easy · Standard layout
  1. 1

    Name the group

    Click “My Puzzles” and type a helpful name, such as “Easy 9x9”.

  2. 2

    How many puzzles?

    Type the number you want. Use a small number for your first test, such as 10.

  3. 3

    Puzzle size

    Choose 4×4, 6×6, 9×9, 12×12, 16×16, or 25×25. Bigger sizes have more squares and can take longer to create.

  4. 4

    Difficulty

    Choose how easy or hard the puzzles should be. The app only shows choices available for the selected size.

  5. 5

    Layout

    Standard removes numbers freely. Balanced pattern makes removed spaces match when the puzzle is turned halfway around.

  6. 6

    Save Choice

    This button appears after you change a group. Click it. When it says “Saved”, the group is ready.

SizeDifficulty choicesGood for
4×4Very Easy to HardYoung beginners and quick puzzles
6×6Very Easy to ExtremeBeginners who want more challenge
9×9Very Easy to ImpossibleStandard Sudoku books
12×12, 16×16, 25×25Very Easy to ImpossibleLarge and advanced puzzle books

Buttons on every puzzle group

Show / hideOpens or closes the choices.
PreviewShows this group in Puzzle Preview.
Move up / downChanges the order. You can also drag the grip.
CopyMakes another group with the same choices.
DeleteRemoves the group after you confirm.
Add Another GroupAdds a new group to the same book.
Groups and To create

The small numbers at the bottom of the left menu show how many puzzle groups are in this book and the total number of puzzles you asked the app to create.

Tip

The first group in the list is shown in the preview first. Drag the grip to put groups in the order you want.

04

Create the real puzzles

Press Create My Puzzles

After all groups say “Saved”, the app can create the real puzzles and their answers.

STEP 2

Create Your Puzzles

Each puzzle is checked carefully so it has one clear answer.

  1. 1

    Click Create My Puzzles

    A progress bar shows how many puzzles are finished.

  2. 2

    Wait for “Your puzzles are ready!”

    Every puzzle is checked so it has one answer. Large books need more time.

  3. 3

    Download preparation starts by itself

    The app begins preparing your full download in the background. “Go to Download” becomes ready when the files are ready.

ContinueContinues a saved job that paused.
Try AgainRetries after a problem.
StopStops creating more puzzles.
Go to DownloadOpens Step 4 when your files are ready.
Careful

If you change a group after creating puzzles, create the puzzles again so the finished files match your newest choices.

05

App step 2

Colors & Style

This section changes how puzzle and answer pictures look. The preview changes at once.

STEP 2Colors & Style
Quick choices

Colors

Lines & Numbers

Quick choices

Classic gives a familiar Sudoku look. Clean is light and simple. Bold uses stronger lines and numbers.

Colors

Background changes the page behind the grid. Outside Border, Large Box Lines, and Small Cell Lines control the grid colors. Puzzle Numbers are the clues. Answer Numbers are the added answers.

Transparent background

Removes the background color so another color or picture can show behind the puzzle.

Line sizes

Outside border changes the edge. Large box lines change the thicker box dividers. Small cell lines change the thin lines around each square.

Space outside puzzle

Adds empty space around the grid. Keep 0 if you want the puzzle to reach the picture edge.

Number size and position

Number size makes symbols larger or smaller. Horizontal and Vertical move them left, center, right, top, middle, or bottom inside each square.

Font

Changes the shape of the numbers. Choose a ready font or click Browse Fonts for more.

Restore Defaults

Returns only the design choices to the original look. It does not delete your books or puzzles.

Tip

Open Puzzle Preview before changing colors. You will see every change immediately.

06

Inside Colors & Style

Choose a font

Click Browse Fonts to open the Font Library. Each card shows the font using its own style.

FONT LIBRARY

Choose a Google Font

Search by name or choose a style.

Find a font
AllSans SerifSerifDisplayHandwritingMonospace
SANS SERIFMontserratSudoku 123456789Choose font

Find a font

Type a font name. Press the Esc key or click × to clear the search.

Style buttons

All shows everything. Sans Serif is simple, Serif has small strokes, Display is decorative, Handwriting looks written by hand, and Monospace gives every character the same width.

Favorites and Recently Used

Click the star on a font to save it. Favorites shows your stars. Recently Used shows fonts you chose before.

Grid and Rows

Grid shows more cards across the screen. Rows gives each font more horizontal room.

Language

Shows fonts that support the writing language you choose.

Preview text

Type your own sample, such as “Sudoku 123456789”, to see it on every visible font card.

Font card buttons

The star saves a favorite. The outside-link icon opens that font on Google Fonts. Click the card or its choose button to use it.

Previous and Next

Moves between pages of font choices without loading every font at once.

Upload Your Own Font

Open this area and choose a TTF or OTF font file up to 1.5 MB. Upload only a font you have permission to use.

Careful

A custom font must end in .ttf or .otf. Renaming another file does not turn it into a font.

07

App step 3

Numbers & Symbols

Choose what appears inside every puzzle square. This changes only the way values look.

Standard numbers

The normal choice: 1, 2, 3, and so on.

Uppercase or lowercase letters

Shows A, B, C… or a, b, c… instead of numbers.

Roman numerals

Shows I, II, III, IV… instead of normal numbers.

Custom symbols

Type one different symbol for every value, separated by commas. The app shows a map so you can check which symbol replaces each number.

Tip

For a 9×9 puzzle, you need 9 different custom symbols. For a 16×16 puzzle, you need 16.

08

Check before you create

Puzzle Preview

The preview is an instant example. It shows what your files will look like, but it is not one of your finished puzzles.

LIVE PREVIEW

Puzzle Preview

Previewing Puzzle Set My Puzzles

PuzzleSolutionBoth
537619598686348317266284195879

Puzzle / Solution / Both

Puzzle shows clues only. Solution shows the completed answer. Both shows them together.

Preview this group

Click the eye on any puzzle group to make that group the preview example.

Larger View

Opens a large window. You can also double-click the small preview.

− and +

Makes the large preview smaller or larger. The percentage tells you its current size.

Fit to Screen

Chooses a size that fits inside your screen.

Full Screen

Uses the whole screen for the preview. Press Esc on your keyboard to leave full screen.

× Close

Closes the preview or large window and returns you to your work.

09

App step 4

Download Your Files

Choose what goes into your download and how each picture should be named.

STEP 4Download Your Files
Example nameskdpika_Sudoku-001.png · kdpika_Sudoku_Solution-001.png
  1. 1

    What to download

    Puzzles only gives puzzle pictures. Answers only gives completed answer pictures. Puzzles + Answers gives both.

  2. 2

    Image quality

    Standard is 1000×1000, High is 2000×2000, and Extra high is 3000×3000. “Choose my own size” accepts a square size from 512 to 4096.

  3. 3

    Background

    Use my chosen background keeps your Step 2 design. Transparent background removes the background color.

  4. 4

    File names

    Give puzzles, answers, and the downloaded ZIP folder their own names. The example line shows exactly how they will look.

  5. 5

    First file number

    Choose the first number. Use 1 for 001, 002, 003… Use 51 if this book should continue after another set ending at 050.

Download First Puzzle

Saves only the first puzzle picture. Use it to check your design before downloading everything.

Download First Answer

Saves only the first answer picture.

Download Everything

Saves one ZIP file. A ZIP is one package that holds many files. Open it to find separate Puzzles and Solutions folders.

Pause

Stops preparation safely. Your progress is saved so you can continue later.

Tip

For most books, keep “Puzzles + Answers” and “Standard · 1000 × 1000”. Download the first puzzle before downloading everything.

Careful

Do not press Download Everything many times. Press it once and wait for your browser to show the saved ZIP file.

10

Keep work separate

Your Books

Click the folder icon at the top to create a new book or return to an older one.

YOUR WORK

Your Books

My Sudoku BookOpened today

Create New Book

Type a new name, then click the button. The new book opens with its own groups and choices.

Open Book / Open Now

Open Book changes to that saved book. Open Now marks the book you are already using.

Move books

Use the up and down arrows, or drag the grip, to put books in your preferred order.

Delete book

Click the trash icon and read the message carefully. You must keep at least one book.

11

Follow this exact example

Make your first book in 10 minutes

This small test book lets you learn the whole app before creating hundreds of puzzles.

0:00

Open the app and name the book

At the top, replace “My Sudoku Book” with My First Sudoku Book. Wait until you see “Saved”.

1:00

Choose 10 puzzles

In the first group, enter 10. Choose 9×9, Easy, and Standard. Click Save Choice.

2:00

Check the preview

Click the eye button. Choose Puzzle, then click Larger View. Close it with × when you are happy.

3:00

Choose a simple design

Open 2. Colors & Style. Click Classic. Keep the ready colors and normal outside space.

4:00

Keep normal numbers

Open 3. Numbers and choose Standard numbers.

5:00

Create the puzzles

Return to 1. Puzzles. Click Create My Puzzles. Wait for “Your puzzles are ready!”

7:00

Choose the download

Click Go to Download. Keep Puzzles + Answers, Standard, and the ready file names.

8:00

Check one picture

Click Download First Puzzle. Open the saved PNG picture and check its colors, lines, and numbers.

9:00

Download the whole book

Return to the browser and click Download Everything once. Open the ZIP to find the Puzzles and Solutions folders.

Finished!

You made a complete, checked Sudoku collection. You can now repeat the steps with more puzzles or different styles.

Open the App and Try It
12

Simple fixes

Common problems and their fixes

Open the question that matches what you see.

Create My Puzzles is grey and I cannot click it

Add at least one puzzle group. Make sure the number is 1 or more, choose a size and difficulty, then click Save Choice.

My group says “Save Choice”

You changed something in the group. Click Save Choice. It will change to “Saved”.

Creating puzzles is taking a long time

Large sizes, hard difficulties, and many puzzles need more time. Keep the page open. If it pauses, click Continue. For a quick test, start with 10 easy 9×9 puzzles.

The preview does not show the group I want

Find that puzzle group and click its eye button. The group name shown above the preview should change.

I cannot see the preview

Click the eye icon in the top bar. On a small screen, the preview opens over the app. Use × to close it.

Full Screen does not open

Your browser may block full screen. Click Larger View, then use + or Fit to Screen. You can still inspect the complete puzzle.

My custom symbols are not accepted

Use one different symbol for every value. Separate them with commas. A 9×9 puzzle needs 9 symbols.

My font file is not accepted

Choose a real TTF or OTF font file no larger than 1.5 MB. Make sure the file is not damaged and you have permission to use it.

Download buttons are grey

Create the puzzles first. Wait for “Your puzzles are ready!” and for the download preparation to finish.

My own image size shows a warning

Width and height must be the same number, from 512 to 4096. For example, use 1500 and 1500.

I clicked Download Everything but nothing happened

Wait a moment and check your browser’s Downloads list. Allow downloads from this website if your browser asks. Do not click the button many times.

I closed the page while files were being prepared

Open the app again and open the same book. Your saved progress can continue from the Download section.

I deleted something by mistake

Deletion messages give you a chance to cancel. After you confirm a book deletion or use Start Over, the removed work cannot be opened from the app.

The page looks stuck or incomplete

Wait a few seconds, then refresh the page once. Your saved work should return. If it does not, email hi@kdpika.com and describe the message you see.

Need personal help?

Tell us what you clicked and copy the message shown on the screen. Do not send passwords or private payment information.

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