shade cells either side of the coloured letters plus top and bottom - makes three right at the top and two at the bottom. Couldn't see these 5 being needed at first but it then makes the 43
I'm not following that Ionexch...i have 12 either side of coloured letters .....going clockwise from 17..LRR W at the top ..EES etc ..which gives more than the 11 i need..?