![]() All of these methods require the user to write down each candidate they want to apply to each cell. They are called naked single, hidden single, naked pairs, and hidden pairs. ![]() There are four basic methods of achieving this goal. ![]() They can be used either to find a solution for a particular cell or to eliminate candidates and remove unnecessary notes from the cell. To solve medium difficulty Sudoku, it is necessary to use the "pencil" notes function. You can read more about the interface by following this link. This is where notes and strategic decisions come into play. However, at the middle level, at the very beginning of the game, the field contains fewer filled cells, which makes it difficult to find the correct position of the missing ones. The goal of the medium Sudoku is to fill in the empty cells with missing digits, observing one basic rule – there must be no repetition of the same digit in row, column and sector. Also the visual field is divided into sectors (groups), the size of which is 3 by 3 cells. Having familiarized with the principles, understanding the logic of the game interface and consolidating the results and speed of finding a solution on the first level, any user can go to the medium level online Sudoku, starting to improve their mathematical skills, logical reasoning and inference.Īt the very beginning of the game, there is a 9x9 cell field consisting of nine rows (1x9) and nine columns (9x1) on the screen in front of each player. At the initial stage, each player gets acquainted with the rules and principles of the game and the available strategies, gets the first experience of achieving a winning result, regardless of the time it takes them to achieve it – quickly or significantly longer.
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