Not impressive.
Hopping on the Sudoku train, eh? Not a bad idea.
But this was not a game, it was a glorified dressup flash. I was even allowed to put a number in the middle of a line. Even the dressup code was poorly executed, I had numbers following my cursor at a distance and no way to drop them except picking up another number. I'm willing to bet you made this game from a dressup tut.
I didn't bother to finish because I assume you have no way of ending the game other than rolling over the text and comparing my answers to the actual solution. I would have given this a higher score if you had actually developed an engine to enforce the rules of the game and reward me for solving the puzzle.
Summary: okay idea, not enough effort (not even close), 1/5.