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 every line (of any length) contains every digit not more than once.

Put the numbers 1 through 7 into the hexagonal cells so that 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.

Put the numbers 0 through 9 into the triangular cells so that every line (of any length, in three directions) contains every digit not more than once.