
Can’t figure out part of puzzle 31 in volume 1, even after looking at the solution!
In the solution everything up to number 4 is what I had, but then for number 5 it says “there is only one square left in c8 which isolates C” but what I don’t understand is how we knew C was in c8, not in r6 c6, r7 c5 or r7 c6 as well. I have all of those spaces open still. I know I’m just missing something but how would I have figured that out or what did I get wrong? I got stumped there and couldn’t place E, A or D with certainty yet so don’t mind that they are in multiple spots.