Square Puzzle (New Sudoku???)

A new type of sudoku puzzle. I called it as SQUARE.

"Square" is the name of this puzzle, because of its dimension always in shape of square. Sudoku is one of it. Not only that, it also can be played in 4x4, 5x5, ..., and 9x9. Square puzzles consists of 4 basic rules:

1. rows & columns
2. rows, columns & diagonals
3. rows, columns & blocks (regions)
4. rows, columns, diagonals & block.

This means that each square puzzle will be played in different rules...

Aiyo... I don't know how to explain it. You just download it and find out by yourself. Have fun.