Sudoku - Brain testing

The objective of the game is to fill number from 1 to 9 in such a way so that no two same numbers fill in same row, column and 3 x 3 square.

For ex. Number 4 should not be fill in same row where 4 is already store.

There are 3 x 3 square matrix each matrix must contain 1 to 9 number.

The puzzle can be filling with previously available data.

Hint option is use to fill correct value.

Correct option is use to correct any wrong value.

Clear option is use to clear value.