A simple rule subtraction puzzle with an "absolute value" motif. If you overlap two numbers, it will change to the difference.
Bold at the beginning and cautious at the end. .. .. Please enjoy the pleasure of erasing all the numbers.



You can enjoy three modes : (At first, only (1) can be played)
(1) Time Attack Light: Enjoy easy puzzles, with a time limit
(2) Time Attack Classic: Challenge to conquer 50 levels, with time limit
(3) Steady: Calmly work on about 500 puzzles, no time limit



If you set a new self-record by time attack, you can register your score in the world ranking.

Aim to reach level 50!



[Terms of use]
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　(You can also purchase the non-advertising version from within the app)
- You can monetize the play videos of this app by distributing them to video sharing sites such as "YouTube".
- This application shall be provided as it is, regardless of the presence or absence of defects and the content, without any warranty of the author of this application and its related parties. The creator of this app and its related parties are not responsible for any damage caused by using or not using this app.