NumberPlace1000！～F

Anyone from beginners to masters can enjoy it!
Challenge all thousand levels of our brain training “Number place” game!
Are you on the way to your office or school?
Time to play “NumPlace”! We’ve prepared four full-scale difficulty levels: Easy, Usual, Hard and Insane.
▼So, what the “NumberPlace” is?▼
It is a puzzle game, which contains a 9x9 grid with lines and rows of square fields also formed into 3×3 blocks.
All fields are needed to be filled with numbers from 1 to 9 so that the numbers will never duplicate in rows, lines and 3x3 blocks.
The rules are following:
① Fill into the blank fields numbers from 1 to 9.
② Each number can only appear once in a row or column.
③ 3×3 Block surrounded with a thick line may contain numbers from 1 to 9 only once with no duplication.

▼Useful features▼
・Save
・Notes
・Number duplication check
・Sound effects
・Music ON/OFF

※Problem of this application is the same content as the paid version