Locked Hidden Pair
The two cells of a hidden pair sit where a line crosses a box, so the eliminations reach both.
How it works on this board
2 and 6 can appear only in the highlighted set of cells
1
7
6
4
8
2
5
4
9
4
3
7
7
9
3
4
1
2
7
5
5
7
4
4
6
5
3
2
4
8
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