Every time you tap a number, will affect the numbers on the same row and same column.
Every level has different maximum value.
Numbers will return back to 0 after they reach the maximum value.
There are four additional tools
(Steps, Freezing, Increase, Refresh)
When the level is up, the target of the game will be changed
- Make all numbers to ones.
- Make all numbers in order.
(for example 0120, 2345 etc.)
-The sum of every row and colume must be the same.