Sudoku - 4x4
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Sudoku - easy
When you fill a square with the correct digit, the number will turn green, but at a certain point of the game it is possible that more digits could be correct. If at that certain point the digit is incorrect, it will turn red. It is possible that after filling the other squares, some of the digits written down previously won’t be correct anymore. In this case the number won’t change its color, you’ll have to find the incorrect digit in the grid.
We recommend the 4×4 version of Sudoku primarily to children, and to those that are new to the game. Of course it could be a great choice even if we have only a few minutes, but we want to play a game. The rules of this version are very similar to those of the original game. The point is that each row, each column and each 2×2 subgrid can only contain the digits from 1 to 4 only once. But they have to appear at least once.