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As the title says, I'd like a hint (and an explanation why it is so) for the puzzle position in the attached image. I think I'm missing something really obvious but I can't figure it out.

Again though, I'd like the reasoning too, I can just look up the solution if that's what I wanted to do.

This is my board position.

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    $\begingroup$ You have two {7,8} cells in the fourth column, so those contain 7 and 8 in some order, so you can remove 3 from the third cell in that column and 8 from the sixth. $\endgroup$ – Gareth McCaughan Mar 8 '17 at 17:37
  • $\begingroup$ Oh right, thanks! Completely missed the (7,8) pair twice in a column! $\endgroup$ – Blindy Mar 8 '17 at 19:34
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I think

You can remove 2,8 from A6 and A3 as it can only occur in A5 and A2 in that order.
Also, you can remove 7,8 from C4 and F4 as it can only occur in E4 and H4 in that order.

For reference of cells.

enter image description here

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  • $\begingroup$ Yeah, similar to @Gareth McCaughan's comment, I didn't consider same pairs over the entire rows/columns. Thanks! $\endgroup$ – Blindy Mar 8 '17 at 19:36

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