Question

how to solve sudoku youtube link plz​

Answer 1

Answer:

Have you reached the point in your Sudoku solving where you are ready to try out some of the harder puzzles—expert Sudoku, hard Sudoku, medium Sudoku? Do you want some new techniques to make these harder puzzles more solvable? If so, you have come to the right place.

If you are already very confident with easy (one- or two-star) Sudoku, then you already know the rules of the puzzle and some of the simpler techniques for solving. You know that each row of nine cells must contain each digit 1–9 once; each column of nine cells must contain each digit 1–9 once; and each 3x3 block (or region) of cells must contain each digit 1–9 once.

You probably also know that letters or symbols can be used instead of the digits 1–9 to create (and then solve) a puzzle, and you may know that in some of the variety puzzles a region is made up of an irregular shape—still nine cells, but gerrymandered to create a different kind of solving challenge and enjoyment.