Difficult sudoku puzzles will require you to learn advanced sudoku strategies. In this article, I will discuss some advanced tips to solve it
Andoku Sudoku 3 (Andoku 3) is a popular offline sudoku application for mobile phones and tablets. Check out how to play on this article.
Playing sudoku is addictive, and you can never have enough puzzles. When you become a skilled player, you may want more challenging puzzles and try a different and more difficult type. You may have solved a lot of classic sudokus that are very common in all sudoku books or online sites. However, a variation that
Multi Sudoku is one of the challenging but at the same time, interesting sudoku variants that have been developed in the logical world of puzzles. It is a sudoku puzzle that consists of two or more sudoku grids. The unique part of multi sudoku is that certain region(s) of the sudoku grids are overlapping each
Killer sudoku is considered one of the most common and well-known sudoku variants. At first glance, a killer sudoku puzzle can appear scary due to the dashed lines and no numbers given on any cell. But it brings another element of standard sudoku due to its arithmetic feature. Now, what are the basic killer sudoku
As Sudoku is gaining more popularity each day, more Sudoku variants also emerged (and still emerging) that have originated from the standard Sudoku 9×9 puzzle. And one of these Sudoku variants is the sudoku 16×16. If seeing a standard 9×9 Sudoku is intimidating for a beginner, what would you feel if you encountered a giant