Hm. Interesting. I got this doing it without break or anything (note that I'm practically half blind as I have a 90 something % cataract on my right eye and something "unidentified" refracting in my left).
ScreenShot005.png
Interestingly, there are mistakes definitely separable in all 4 regions
Also I'm not sure what this is supposed to mean:
ScreenShot006.png
(especially the "highest" score saying 1485 while only 99 on the right of the scale π² )