## Which level of Sudoku is the hardest?

Expert level Sudoku

Expert level Sudoku This hardest Sudoku puzzle is characterized by the fact that only a few numbers are shown in the Sudoku square, which consists of 9 small squares, where the cells are located 3×3.

**What are the levels of difficulty in Sudoku?**

Sudoku puzzles are generally classified as easy, medium or hard with puzzles having more starting clues generally but not always easier to solve. But quantifying the difficulty mathematically is hard. Now Ercsey-Ravasz and Toroczkai say they’ve worked out a way to do it using algorithmic complexity theory.

**What is the average time for a hard Sudoku?**

It can be incredibly challenging to solve a Sudoku puzzle. That’s what makes it fun. It is believed that the average Sudoku player spends approximately 20 minutes solving a typical Sudoku puzzle.

### Is Killer Sudoku harder than regular?

Despite the name, the simpler killer sudokus can be easier to solve than regular sudokus, depending on the solver’s skill at mental arithmetic; the hardest ones, however, can take hours to solve.

**How are Sudoku puzzles graded?**

Sudoku puzzles are graded according to difficulty and this grading is essentially giving you an anatomy of the problem: many puzzles are very easy to solve (grade: easy, moderate) with a bit of logic. However, when one gets to the harder puzzles (grade: hard, very hard, evil) all the simple methods fail.

**Is Sudoku hard to play?**

Sudoku puzzles can be very challenging, however, you will be learning how to break these challenging puzzles down into simple, solvable pieces so you can quickly and easily complete even the most difficult Sudoku boards and layouts! We will be using some different techniques to solve puzzles at all levels.

## How do you change the difficulty in Sudoku?

Tap New Game on the main screen and select the desired difficulty level.

**How do you solve Sudoku logically?**

The most basic strategy to solve a Sudoku puzzle is to first write down, in each empty cell, all possible entries that will not contradict the One Rule with respect to the given cells. If a cell ends up having only one possible entry, it is a “forced” entry that you should fill in.