Puzzle No 142: Classic Sudoku

Challenging classic sudoku.

Rules:

Place numbers in the grid such that each row, column, and 3*3 box contain the numbers 1-9. 

Difficulty: Hard

Puzzle:

Online Link: ClassicSudoku 

(If you're solving on the phone, click on the "Panel" option to turn it on. It will then display numbers to select.)

Any queries please leave a comment or reach out to me.

Have Fun !!!