Can anyone help me with this sudoku puzzle?

Question

http://i35.tinypic.com/2r5uuk3.jpg

Answer 1

Looks like you find a multiple-solution sudoku grid.

This grid has 8 solutions, probably being setup intentionally.

Interestingly, it is also a suBundle puzzle.

( ref: http://www.subundle.com/ )

There are 216 key-sets, each set has 3 key-cells,  

To form a key-set:

   Pick one key from (b1 ,b6,b8, c1,c6 and c8) group.

   one from ( d1,d8,e1,e8,f1 and f8 ) group.

   and one from (g2,g9,h2,h9,i2 and i9 )

(b1, b1 and I9 , for example)

Each key has 2 possible answers, you may pick either one to continue the game.

Alternatively, if you have reduce number of answers down to 2 for any cell in the groups, just pick one, but cells in that group is then determined.

After 3 picks, the grid will have a unique solution.

There are more infomation about SuBundle games at:

http://www.subundle.com/