Sudoku help?

Question

Just wondering what the next step in completing a sudoku is. I've already went through the entire thing, and penciled in the possiblites on each, based on which ones were useable. Now, how do I figure out which number is the correct one for the first box? The top left 3x3 is already finished, so I'm working on the left middle. It's either a 1 5 6 or an 8.

Answer 1

pretty hard to see when theres no example

Answer 2

email what you have all ready done and ill email back completed to [e-mail]

Answer 3

If you can't figure it out going by box, try going by column or row. Eventually you'll hit a box where there's only one possible number that could go there.