by Aram Hakobyan
pretty nice puzzle is a generous gift for Puzzles.COM from Aram Hakobyan.
The object is to fill out a square 3x3 with the nine numbers from 0 through
8 (using each of them exactly once) in such a way that the numbers in the first, second and third rows will add up to three numbers in proportion 1:2:3. And simultaneously with this the same proportion has to be achieved for the first, second and third columns.
In the square above click at a cell until a number you want to place in this cell appears. When you place any number into a cell, this number becomes highlighted in the bottom line of numbers beneath the square. This helps you to control which numbers are used or remain unused while you solve the puzzle.