Number Ball 6x6 1 Light

Number Bal 6x6 1 Light (distorted by the Japanese pronunciation of the English name "Nanbaboru") - a logical puzzle of a square shape, invented by Naoki Inaba (Japan).
It is necessary to arrange numbers from a given range in some cells of the grid so that in each row and in each column each number is used only once. If there is a circle in the cell, such a cell must contain a number. If there is a cross in a cell, you cannot put a number in this cell.

New puzzles Nanbaboru 6x6 1 Light free: Other names are Number Ball.

The creator of this puzzle is Naoki Inaba.

To solve the puzzle, you need to arrange the numbers from the specified range in certain cells of the grid so that in each row and in each column each number is used only once.

If there is a circle in the cislobol cell, then it must contain a number. If there is a cross in the cell, then there should not be a number in it.

Available sizes - 5x5, 6x6, 7x7, 8x8, 9x9.