Sudoku is some kind of puzzle. In start you have some small amount of numbers in game field. Your task is to fill the playing field with the rules described above: each line, column, diagonal and "small square" must contain only 1..N numbers without repeating. That is all the game.

Yes. You're right. Tnx.

Pretty simple and readable solution I think. But there is no need ternary "?" operator. Just "result == 0" give the same result.