It's a video game, but you can play it as if you were writing with a pen on paper.
You can customize the assist functions to your liking.


● Customize the assist functions and play with the settings you like.

Customize the assist functions to play with the settings you like.
We wanted to retain the feel of playing with pen and paper, but make it easier to play...!

・Automatically check for incorrect numbers
・Highlight squares with the same number as the selected number
・Highlight squares in the vertical and horizontal columns as the cursor
・Display an effect when the numbers are in order
・Change the design of the lettering
・Display or hide the timer

...and other assist functions you can turn on/off any way you like.


●The game can be played anytime, anywhere, even if it takes a long time.

●Touch controls are supported.
Touch controls make it easy to play casually.

●There are a total of 300 problems in EASY, NORMAL, and HARD difficulty levels.
There are 300 problems in three difficulty levels: EASY, NORMAL, and HARD.