A free program for Windows, by Casual game.

Classic Sudoku Master is a free, logical and addicting game for your mind and brain!

Sudoku is one of the most popular logic games, which is great for your brain and logic! It is a simple game with only one goal – to fill a grid with numbers from 1 to 9, without repeating any numbers within the same row or column. This is a classic logic game.

The rules are easy to understand and can be played by anyone, even with no previous knowledge of Sudoku.

Each level of difficulty has its own unique and unique look and feel. You will be able to see hints, auto-check, and duplicate numbers.