Demanding Sudoku Puzzle - Hard to Solve

Here is a Demanding Level Sudoku puzzle from the Will Shortz book Surrender to Sudoku, 200 Irresistibly Hard Puzzles. The puzzles in this book are all fairly hard to solve. Will is the crossword puzzle editor for the New York Times. Watch to see the sudoku techniques and tricks I use to solve puzzles. Have fun with it.

Видео Demanding Sudoku Puzzle - Hard to Solve канала MyLameAnimations