The numbers 1 to 6 must occur only once in each column.Compared to the 4x4 Sudoku for Kids puzzles, the concept of blocks is introduced at this stage. The rules of 6圆 Sudoku puzzles are the same as with traditional Sudoku grids, with only the number of digits changing. These Sudoku for kids are also printable. Logic and concentration are the single requirements to solve a Sudoku puzzle. Each puzzle has only one possible solution and the numbers allocated at the beginning are the clues to find it. The kids must fill a grid with the missing numbers while ensuring each digit only occurs once per row, column, and block. Regardless, the rules are the same as with any traditional Sudoku puzzle. They also remain easy enough for new players who are still getting acquainted with the dynamic and working of these puzzles.Ħ圆 Sudoku for Kids introduces the concept of blocks and more numbers that must be placed on the grid. These puzzles are set to a general difficulty level providing kids who graduated from the 4x4 grids with new challenges. They are designed for kids who already encounter no difficulty in completing the 4x4 Sudoku puzzles. These 6圆 Sudoku for Kids are suitable for kids ages 6 to 10 (1st, 2nd, 3rd and 4th grades).