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Fill in the grid so that every line (in both with arrows marked directions) contains all the numbers from 1 to the length of that particular line.

Fill in the grid so that both lines (the column and the S-form) contain the digits 1 through 9. There are no neighbouring cells with consecutive digits.

Fill in the grid so that both lines (the column and the S-form) contain the digits 1 through 9. There are no neighbouring cells with consecutive digits.

Fill in the grid so that every with an arrow marked line and every bold marked region contains the digits 1 through 8.

The coloured lines in this grid should help to understand the rules:

Fill in the grid the digits 1 through 9 so that in every row, every column (even if it is not continous) and in cells of the same color no digit is repeated.

Put the numbers 1 through 7 into the hexagonal cells so that each of 7 large hexagons and every line (of any length) contains every digit not more than once.

Put the numbers 1 through 7 into the hexagonal cells so that each of 7 large hexagons and every line (of any length) contains every digit not more than once.

Fill in the grid so that every of the lines in the three marked directions and every circle contains the digits 1 through 6.

Fill in the grid so that every row/column contains all the numbers from 1 to the length of that particular row/column. The sum of the digits within each sub-region is equal to the specified number. No digits can be repeated in any cage.

Fill in the grid the digits 1 through 7 so that no row, column, and diagonal contains any digits more then once. Different colors help to spot the diagonals.