Have completed how to find the the grid and found the 51 cells to be erased. Unfortunafely I have no idea and cannot imagine how to arrive at the 9 contiguous cells to be highlighted since I cannot finds a word or phrase that suits a representation needed. Any help would be very much appreciated please..
If you have erased all of the required cells, you must be able to imagine where they came from, and in two rows there are a further 9 letters to highlight from the same source.