37
13
57
23
37
W-Wing
Two cells with the same candidates {X,Y}, not seeing each other, joined by a strong link on X. One of them must be Y — so Y is removed from cells seeing both.
There's a move in column 4.
Two cells with the same candidates {X,Y}, not seeing each other, joined by a strong link on X. One of them must be Y — so Y is removed from cells seeing both.
There's a move in column 4.