CD @70, thereby lies a further ambiguity.
If you do not draw the first cell in the series but the following 5 it looks like you have drawn 6 squares, but you haven't - you have left an empty or final CELL to be dealt with. That gives you the option to draw one final square.
After all, the instructions refer to a cell, not a square! Ho-hum, like I have said before, the end game leaves a lot to be desired and, hopefully, a lot of leeway in the leniency of the checker. Visually both appear correct and that will be dependent upon whether the checker accepts that the solver has applied their own GWI(was)T to their submission. That would square up the fairness of the end game.