[Inner Stickler]

Here were the next couple of moves that I saw.

Step 1:

Assuming A-I left to right across the top and 1-9 top to bottom along the side, B9 has to be 3 because none of the other spaces in that column can take a 3.

Step 2:

A9 must then be 4 because E8 and I7 prevent the other five spaces in that square from being a 4.

Step 3:

G6 must be a 4 because all of the other spaces in that row are in line with a 4.

Step 4:

H2 must be a four because none of the other spaces in that square can now take a 4.

Edit: In my opinion, if you have to guess, it's a badly designed sudoku.