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

●You can customize the assist function and play with your favorite settings.

You can customize the assist function to play with your favorite settings.
We want to keep the paper-and-pencil style, but make it easier to play...!

・Automatically check for misspelled numbers.
・Highlight squares with the same number as the selected number
・Highlight squares in vertical and horizontal columns with the cursor
・Highlight squares with the same number as the selected number
・Change the design of letters.
・Display timers.

You can turn on/off various assist functions such as ...... to your liking.

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

●Touch operation is supported.

●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.