The following puzzle has me stuck. I know the answer via looking it up at Pappocom but I really would like to figure out the next move without T & E

8x4 75x x6x

156 x24 8x7

xxx xx6 5x4

912 473 658

x6x xxx x4x

438 x65 7xx

x81 6xx 4x5

6xx x4x x89

x49 xx8 2x6

I have penciled in all possible # but have more than one canidate for each box, row and column.

Thanks for the help in advance.

Ken