HARD Sudoku Puzzles H61-H70

Objective:

Fill in the 9×9 grid so that each row, column, and 3×3 subgrid contains all of the numbers from 1 to 9, without any repetition.

Rules:

Each row must contain all the numbers from 1 to 9 without repetition.
Each column must contain all the numbers from 1 to 9 without repetition.
Each 3×3 subgrid (box) must contain all the numbers from 1 to 9 without repetition.

Hard Sudoku Puzzle H61	Hard Sudoku Puzzle H62
Hard Sudoku Puzzle H63	Hard Sudoku Puzzle H64
Hard Sudoku Puzzle H65	Hard Sudoku Puzzle H66
Hard Sudoku Puzzle H67	Hard Sudoku Puzzle H68
Hard Sudoku Puzzle H69	Hard Sudoku Puzzle H70

Solutions for above 10 Hard sudoku puzzles H61 to H70 can be found Here.