"In the diagram on the right, the White Advancer can capture the Black Queen by moving along the path of red circles and ending its move on the large red circle on c5. If it stops on one of the smaller red circles on d6 or e7, the Advancer will not capture the Queen."
The large circle is on d5. The small red ones on e6 and f7.
I think there are other mistakes:
"In the diagram on the right, the White Advancer can capture the Black Queen by moving along the path of red circles and ending its move on the large red circle on c5. If it stops on one of the smaller red circles on d6 or e7, the Advancer will not capture the Queen."
The large circle is on d5. The small red ones on e6 and f7.