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Digitizer Fun features interesting projects that take advantage of your device's pen input. Some projects are usable with a mouse, touch, or touchpad. Some projects work well with e-ink devices while others require a faster refresh rate.

Our blog has one post discussing some technical details on how curves are created if you are interested.

Sudoku

Complete sudoku puzzles with your digitizer.

Zoom

Enter zoom mode by click the zoom button. When enabled, clicking on a cell will make it twice as big. Then just write your number 11 in the expanded area. Click on a different cell to add another number or click the zoom button again to exit zoom mode.

Erase

Click the erase button. Then click the cell(s) you wish to erase. Then click the line thickness you wish to use.

Line thickness

Change to the desired line thickness by clicking the appropriate line.

Check your work

Submit your answers to see how many are correct and legible to a computer by clicking the check mark button. Answers that are correct will get a green background. Any of your answers without a green background are either the wrong number or illegible. Erase and try again if you are a perfectionist.

Difficulty

You can choose simple, easy, medium, or hard from the homepage. Or directly visit the url https://digitizer.fun/sudoku?d=easy.

Custom puzzles

You can solve any sudoku by entering it as a string on the home page. The first 81 characters should be the starting grid row-by-row with "." representing blank cells. Then a comma. Then the 81 characters of the solved puzzle.

You can create these puzzles from QQWing and select csv mode.

Crossword Puzzles

Complete crossword puzzles with your digitizer. You will need to upload a puzzle from somewhere else. There is a sample puzzle here22 The clues are just the answers. if you want to demo the experience.

Upload a .puz file

You need to upload a .puz file from the home page. Only 15x15 and 21x21 puzzles will work at the moment. There are a variety of sources around the internet.

Just click the upload .puz button, select the file, then click Submit.

Basic Input

Write the correct letter in the correct cell in the grid. By default, any touch events with your finger/hand will be disabled.

Seek

To see the clues relevant to a particular area, enable seek mode. Then click on a cell. The clues that intersect the targeted row or column will be displayed.

To write in a cell, disable seek mode by click the button again. To show all clues, click the all button.

Zoom

If you need a slightly larger space for your writing, you can enable zoom mode. Each cell will be 2-3x as large, but not all cells will be visible. To move around, use the seek function. The targeted cell will be in the center of the visible grid.

Erase

Click the erase button. Then click the cell(s) you wish to erase. Then click the erase button again to input letters again.

Check your work

Click the check button to see how many letters are correct. If your handwriting is good, then most will work. But it is not perfect. Make sure that lines connect where they are supposed to connect.

Emoji Seclusion

From the home page you can select one of 10 emojis or leave the box blank for random emojis. Then select the location you wish to use as a border. You can select any state in the US or a country. The maps only include one contiguous region so islands will not show up.

The goal of the game is to create as much emoji-free space as possible. Draw lines to divide the region into multiple regions. Regions without any emojis will disappear. Once 67% of the total area is emoji-free you will advance to the next level with one more emoji to deal with.

If an emoji hits your line as you are constructing it you will lose a life. You have 3 lives and gain an extra life each round.

Earn points for completing the round with extra emoji-free space and with the fewest number of regions needed.

Drone Spy

Fly your drone looking for interesting places. Draw a region on the map for your drone to explore. If your drone flies over a restricted space you will be fined. Once you have flown over an entire object you will be forced to buy that object.

If you spot nothing then the region will be red. If you spot something then the region will be green. Each object has a pattern. Darker shades of green mean that a larger percentage of that region is of interest.

It costs $10K per km2km^2 explored. Any part of the map that was explored previously will be avoided.

The fine per object flown over is $2.5M. It costs $25M to buy the four objects that are not the gold mine. Finding the entire gold mine is worth $500M.

Additionally, you will have to repay a part of your loan with interest each turn.