Click the green flag. Wait for your computer to generate 400k math problems. Once that is done your computer will see how many problems it can calculate in one second. At the end the results are calculated. My slow old computer get's about 25% of them done in one second. Yours might get 109% depending on speed and browser. I am just testing my calculation script and thought this would be good. This could be used to get the OS/Browser with some tweaks :) You may experience lag or high CPU, this project does a lot of math. Turbo mode does increase the amount of problems solved but only by 1% on average. My calculation script is not the best, so if I made it better your scores would increase :)
edit: 2018. I guess it is more of a scratch speed test.