PuzzleZero play online

Question is randomly selected.
To complete six equations, please enter numbers 0 to 9 without repeating into nine blanks.(One of numbers remains.)
After entering the numbers, please touch "check".
Touch "Reset" to reset the blank numbers.
There are two play modes, time attack mode and quest mode.
You can switch between English display and Japanese display by pressing the national flag button on the upper right.

Time attack mode
There are three difficulty levels: "Easy", "Normal", "Hard".
In "Easy", three numbers are displayed from the beginning.
In "Normal", one number is displayed from the beginning.
In "Hard", no number is displayed from the beginning.
The score varies according to the clear time.

Quest mode
Every time, there is time limit.
If you succeed five times in succession, it is your victory.
From 1st to 5th times, the time limit is 5 minutes, 4 minutes, 3 minutes, 2 minutes, 1 minute respectively.