I had looked at the 4's as part of an X-wing but passed it by when I saw multiple 4's in column 1 and row 4. I now realize that the 4's were constrained by the boxes. The rest of the pu ...
The 9 Aug 2006 Very Hard proved to indeed be very hard for me. The beginning was fairly routine but when I reached this point, I came to an end. Can anyone point out what the next step is??