At 35m or 50 paces, outer cicle 75cm with area of 4418cmsq divided in 12 fields, inner cicle 37.5cm with area of 1104,5cmsq divided into 4 fields? You don't have to count each hole like an idiot, but look for "empty" patches (bad news) equal to medium sized mans hand or larger.
Sorry, but I have to give those patterns a failing grade.