Select the puzzle you wish to time yourself solving, select how long inspection time you want, then press your SPACE bar.
If sound is switched on you will hear pings for the last three seconds of inspection, then a start sound. This is so you don't have to look at the screen.
Press SPACE again to stop the timer when your solve is completed.
Your times will be recorded against each puzzle seperately, and averages will be calculated if enough solves have been logged. All this data will be stored in your browser's local storage (cookies).
Some interface items – e.g. the scramble moves – are highlighted with a dotted line underneath. Hover your cursor over these for more information.